Further reading Loading

NOTE: this was not fixed correctly in 5. Unless you manually uninstalled the standard kernel metapackages e. Specifically, by adding to a write queue between disconnection and re-connection, a local attacker can trigger multiple use-after-free conditions. S does not properly maintain RBX, which allows local users to cause a denial of service uninitialized memory usage and system crash. A flaw was found in the crypto subsystem of the Linux kernel before version kernel This attack appear to be exploitable via NFS server must export a filesystem with the "rootsquash" options enabled. Original advisory details: Thomas E. If a syscall such as ftruncate removes entries from the pagetables of a task that is in the middle of mremap , a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. The Linux Kernel versions 4.

An issue was discovered in the Linux kernel before 4. It was discovered that the AMD Cryptographic Coprocessor device driver in the Linux kernel did not properly deallocate memory in some situations. This is similar to CVE Unless you manually uninstalled the standard kernel metapackages e. Related notices USN : xserver-xorg-video-nvidia, xserver-xorg-video-nvidia, nvidia-graphics-drivers, nvidia-graphics-drivers In the Linux kernel before 5. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. A flaw was found in the Linux Kernel where an attacker may be able to have an uncontrolled read to kernel-memory from within a vm guest. A local attacker could use this to cause a denial of service system crash.

After a standard system update you need to reboot your computer to make all the necessary changes. In the Linux kernel through 4. An issue was discovered in the Linux kernel before 4. After a standard system update you need to reboot your computer to make all the necessary changes. Press ESC to close. This attack appear to be exploitable via local code execution and the ability to use ptrace. XFS partially wedges when a chgrp fails on account of being out of disk quota. It was discovered that the NFS client implementation in the Linux kernel did not properly perform bounds checking before copying security labels in some situations. If a syscall such as ftruncate removes entries from the pagetables of a task that is in the middle of mremap , a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. This occurred because the backport process depends on cherry picking specific commits, and because two correctly ordered code lines were swapped.

This is exploitable by attackers who can create virtual machines. This occurs because an ID transformation takes place properly for the namespaced-to-kernel direction but not for the kernel-to-namespaced direction. The Linux kernel 4. A remote attacker could use this to expose sensitive information. The problem has limited scope, as users don't usually have permissions to access SCSI devices. A flaw was found in the crypto subsystem of the Linux kernel before version kernel A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. Releases Ubuntu After a standard system update you need to reboot your computer to make all the necessary changes.

Further reading Loading Related notices USN : xserver-xorg-video-nvidia, xserver-xorg-video-nvidia, nvidia-graphics-drivers, nvidia-graphics-drivers This may lead to copying up to kernel heap pages to the userspace. An unprivileged local user with access to SUID or otherwise privileged binary could use this flaw to escalate their privileges on the system. Packages linux - Linux kernel linux-aws - Linux kernel for Amazon Web Services AWS systems linux-kvm - Linux kernel for cloud environments linux-lts-xenial - Linux hardware enablement kernel from Xenial for Trusty linux-raspi2 - Linux kernel for Raspberry Pi V8 systems linux-snapdragon - Linux kernel for Qualcomm Snapdragon processors. This is fixed in the following kernel versions: 4. Press ESC to close. Depending on how the target's code was built i.

How does it work? A local attacker could use this to cause a denial of service system crash. This may lead to copying up to kernel heap pages to the userspace. After a standard system update you need to reboot your computer to make all the necessary changes. This can cause the null skcipher to be freed while it is still in use leading to a local user being able to crash the system or possibly escalate privileges. This attack appear to be exploitable via local code execution and the ability to use ptrace. Releases Ubuntu This occurred because the backport process depends on cherry picking specific commits, and because two correctly ordered code lines were swapped.

In the Linux kernel through 5. Linux kernel version after commit bdcf0aea1 - 4. This occurs because an ID transformation takes place properly for the namespaced-to-kernel direction but not for the kernel-to-namespaced direction. Details Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly validate meta-data information. Incorrect access checking in overlayfs mounts could be used by local attackers to modify or truncate files in the underlying filesystem. Related notices USN : xserver-xorg-video-nvidia, xserver-xorg-video-nvidia, nvidia-graphics-drivers, nvidia-graphics-drivers The Linux netback driver allows frontends to control mapping of requests to request queues. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu A local attacker could use this to cause a denial of service. An attacker can also cause a denial of service hypervisor panic via an illegal exception return.

Further reading Loading After a standard system update you need to reboot your computer to make all the necessary changes. Use of this information constitutes acceptance for use in an AS IS condition. Depending on how the target's code was built i. It was discovered that the NFS client implementation in the Linux kernel did not properly perform bounds checking before copying security labels in some situations. Releases Ubuntu Further reading Loading Thus a malicious container user can cause a host kernel memory corruption and a system panic.

This vulnerability appears to have been fixed in git commit f67ba7a50c57f72e69a6dad90a0f0f. It was discovered that the Conexant TV card device driver for the Linux kernel did not properly deallocate memory in some error conditions. This can result in a kernel crash, or potentially in privilege escalation. It was discovered that the state of network RNG in the Linux kernel was potentially observable. An unprivileged local user with access to SUID or otherwise privileged binary could use this flaw to escalate their privileges on the system. An attacker could use this to cause a denial of service. Related notices USN : linux-image An attacker can also cause a denial of service hypervisor panic via an illegal exception return. Unless you manually uninstalled the standard kernel metapackages e.

This attack appear to be exploitable via NFS server must export a filesystem with the "rootsquash" options enabled. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu It was discovered that the Conexant TV card device driver for the Linux kernel did not properly deallocate memory in some error conditions. The new file created with the same inode may contain leftover pages from cleancache and the old file data instead of the new one. An issue was discovered in the Linux kernel before 4. Unless you manually uninstalled the standard kernel metapackages e. An attacker could use this to construct a malicious xfs image that, when mounted, could cause a denial of service system crash. Use of this information constitutes acceptance for use in an AS IS condition. A local attacker could exploit this when a net namespace with a netnsid is assigned to cause a kernel panic and a denial of service. This vulnerability appears to have been fixed in after commit fa.

After a standard system update you need to reboot your computer to make all the necessary changes. The Linux kernel 4. A local attacker could use this to cause a denial of service memory exhaustion. There are NO warranties, implied or otherwise, with regard to this information or its use. References CVE Join the discussion Ubuntu security updates mailing list Security announcements mailing list. Details Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly validate meta-data information. The new file created with the same inode may contain leftover pages from cleancache and the old file data instead of the new one.

The Linux kernel 4. It was discovered that the AMD Cryptographic Coprocessor device driver in the Linux kernel did not properly deallocate memory in some situations. The Linux kernel before 4. An issue was discovered in the Linux kernel before 4. There are NO warranties, implied or otherwise, with regard to this information or its use. Related notices USN : linux-image-snapdragon, linux-image-gcp-lts Thus a malicious container user can cause a host kernel memory corruption and a system panic. After a standard system update you need to reboot your computer to make all the necessary changes. An issue was discovered in the Linux kernel before 5. Related notices USN : xserver-xorg-video-nvidia, xserver-xorg-video-nvidia, nvidia-graphics-drivers, nvidia-graphics-drivers

Related notices USN : linux-image-snapdragon, linux-image-gcp-lts The new file created with the same inode may contain leftover pages from cleancache and the old file data instead of the new one. In the Linux kernel through 5. This is exploitable by attackers who can create virtual machines. This attack appear to be exploitable via local code execution and the ability to use ptrace. M validation does not prevent unintended execution modes. An issue was discovered in the Linux kernel before 4. In the Linux kernel before 4.

This can cause the null skcipher to be freed while it is still in use leading to a local user being able to crash the system or possibly escalate privileges. In the Linux kernel before 5. On the other hand, e. It does not ensure that only root may inspect the kernel stack of an arbitrary task, allowing a local attacker to exploit racy stack unwinding and leak kernel task stack contents. How does it work? This attack appear to be exploitable via An attacker on a must pass a very large, specially crafted packet to the bnx2x card. In the Linux kernel before 4. The Linux kernel before 4. The userfaultfd implementation in the Linux kernel before 4.

Thomas E. XFS partially wedges when a chgrp fails on account of being out of disk quota. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu A remote attacker could use this to expose sensitive information. The Linux Kernel version 3. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu Releases Ubuntu The Linux netback driver allows frontends to control mapping of requests to request queues. This is exploitable by attackers who can create virtual machines. NOTE: this affects for example Linux distributions that use 4.

The userfaultfd implementation in the Linux kernel before 4. Depending on how the target's code was built i. An attacker could use this to cause a denial of service. After a standard system update you need to reboot your computer to make all the necessary changes. Canonical is offering Ubuntu A local attacker could use this to cause a denial of service memory exhaustion. A local attacker could use this to cause a denial of service. A flaw was found in the crypto subsystem of the Linux kernel before version kernel

In the Linux kernel 4. An unprivileged local user with access to SUID or otherwise privileged binary could use this flaw to escalate their privileges on the system. Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly validate meta-data information. This vulnerability appears to have been fixed in after commit fa. Further reading Loading An attacker can arbitrarily redirect the hypervisor flow of control with full register control. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. An attacker could use this to cause a denial of service or possibly execute arbitrary code. Since Linux kernel version 3.

This is exploitable by attackers who can create virtual machines. Related notices USN : linux-image-snapdragon, linux-image-gcp-lts Any use of this information is at the user's risk. It was discovered that the NFS client implementation in the Linux kernel did not properly perform bounds checking before copying security labels in some situations. A local attacker could use this to cause a denial of service memory exhaustion. Canonical is offering Ubuntu This attack appear to be exploitable via local code execution and the ability to use ptrace. NOTE: this affects for example Linux distributions that use 4. An issue was discovered in the Linux kernel before 5.

Thus a malicious container user can cause a host kernel memory corruption and a system panic. In the Linux kernel through 4. It was discovered that the Conexant TV card device driver for the Linux kernel did not properly deallocate memory in some error conditions. It was discovered that the AMD Cryptographic Coprocessor device driver in the Linux kernel did not properly deallocate memory in some situations. After a standard system update you need to reboot your computer to make all the necessary changes. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. The attacker can achieve Program Counter control. A security flaw was found in the Linux kernel in a way that the cleancache subsystem clears an inode after the final file truncation removal.

Thus a malicious container user can cause a host kernel memory corruption and a system panic. In the Linux kernel 4. An attacker could use this to cause a denial of service or possibly execute arbitrary code. Linux kernel version after commit bdcf0aea1 - 4. A local attacker could use this to cause a denial of service. The attacker can achieve Program Counter control. Packages linux - Linux kernel linux-aws - Linux kernel for Amazon Web Services AWS systems linux-kvm - Linux kernel for cloud environments linux-lts-xenial - Linux hardware enablement kernel from Xenial for Trusty linux-raspi2 - Linux kernel for Raspberry Pi V8 systems linux-snapdragon - Linux kernel for Qualcomm Snapdragon processors. This is fixed in the following kernel versions: 4.

An issue was discovered in the Linux kernel through 5. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. Any use of this information is at the user's risk. The new file created with the same inode may contain leftover pages from cleancache and the old file data instead of the new one. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. Further reading Loading Linux Linux kernel version at least v4. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. This will cause a BUG and denial of service.

It was discovered that the Conexant TV card device driver for the Linux kernel did not properly deallocate memory in some error conditions. The attacker can achieve Program Counter control. It does not ensure that only root may inspect the kernel stack of an arbitrary task, allowing a local attacker to exploit racy stack unwinding and leak kernel task stack contents. It does not check the length of variable elements in a beacon head, leading to a buffer overflow. Since Linux kernel version 3. An issue was discovered in the Linux kernel before 4. Kernel versions 2. Join the discussion Ubuntu security updates mailing list Security announcements mailing list. This may lead to copying up to kernel heap pages to the userspace. Any use of this information is at the user's risk.

Releases Ubuntu Packages linux - Linux kernel linux-aws - Linux kernel for Amazon Web Services AWS systems linux-kvm - Linux kernel for cloud environments linux-lts-xenial - Linux hardware enablement kernel from Xenial for Trusty linux-raspi2 - Linux kernel for Raspberry Pi V8 systems linux-snapdragon - Linux kernel for Qualcomm Snapdragon processors. An attacker can also cause a denial of service hypervisor panic via an illegal exception return. On the other hand, e. Unless you manually uninstalled the standard kernel metapackages e. A local attacker could exploit this when a net namespace with a netnsid is assigned to cause a kernel panic and a denial of service. Details Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly validate meta-data information. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. When processing a request to set or change this mapping, some input validation e.

In the Linux kernel before 5. An attacker could use this to cause a denial of service. CVE It was discovered that the NFS client implementation in the Linux kernel did not properly perform bounds checking before copying security labels in some situations. An attacker could use this to construct a malicious xfs image that, when mounted, could cause a denial of service system crash. It was discovered that the Conexant TV card device driver for the Linux kernel did not properly deallocate memory in some error conditions. It was discovered that the AMD Cryptographic Coprocessor device driver in the Linux kernel did not properly deallocate memory in some situations. This attack appear to be exploitable via NFS server must export a filesystem with the "rootsquash" options enabled. This is fixed in the following kernel versions: 4.

Since Linux kernel version 3. Canonical is offering Ubuntu Unless you manually uninstalled the standard kernel metapackages e. Join the discussion Ubuntu security updates mailing list Security announcements mailing list. This occurred because the backport process depends on cherry picking specific commits, and because two correctly ordered code lines were swapped. This can cause the null skcipher to be freed while it is still in use leading to a local user being able to crash the system or possibly escalate privileges. It does not check the length of variable elements in a beacon head, leading to a buffer overflow. In the Linux kernel before 4.

Related notices USN : linux-image Press ESC to close. An attacker can also cause a denial of service hypervisor panic via an illegal exception return. An issue was discovered in the Linux kernel through 5. On the other hand, e. An issue was discovered in the Linux kernel before 5. An attacker could use this to construct a malicious xfs image that, when mounted, could cause a denial of service system crash. Kernel versions 4.

S does not properly maintain RBX, which allows local users to cause a denial of service uninitialized memory usage and system crash. Kernel versions 2. Join the discussion Ubuntu security updates mailing list Security announcements mailing list. Further reading Loading Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu After a standard system update you need to reboot your computer to make all the necessary changes. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. When processing a request to set or change this mapping, some input validation e. CVE It was discovered that the Conexant TV card device driver for the Linux kernel did not properly deallocate memory in some error conditions.

This vulnerability appears to have been fixed in after commit fa. Related notices USN : xserver-xorg-video-nvidia, xserver-xorg-video-nvidia, nvidia-graphics-drivers, nvidia-graphics-drivers There are NO warranties, implied or otherwise, with regard to this information or its use. This vulnerability appears to have been fixed in git commit f67ba7a50c57f72e69a6dad90a0f0f. After a standard system update you need to reboot your computer to make all the necessary changes. Press ESC to close. This attack appear to be exploitable via An attacker on a must pass a very large, specially crafted packet to the bnx2x card. This attack appear to be exploitable via local code execution and the ability to use ptrace.

Press ESC to close. Related notices USN : linux-image-snapdragon, linux-image-gcp-lts Depending on how the target's code was built i. Canonical is offering Ubuntu If a syscall such as ftruncate removes entries from the pagetables of a task that is in the middle of mremap , a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. Kernel versions 4. CVE It was discovered that the NFS client implementation in the Linux kernel did not properly perform bounds checking before copying security labels in some situations. In the Linux kernel before 4.

This may lead to copying up to kernel heap pages to the userspace. The userfaultfd implementation in the Linux kernel before 4. In the Linux kernel before 4. XFS partially wedges when a chgrp fails on account of being out of disk quota. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. An issue was discovered in the Linux kernel through 4. Original advisory details: Thomas E. Unless you manually uninstalled the standard kernel metapackages e. Releases Ubuntu

Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu XFS partially wedges when a chgrp fails on account of being out of disk quota. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. CVE It was discovered that the Conexant TV card device driver for the Linux kernel did not properly deallocate memory in some error conditions. Incorrect access checking in overlayfs mounts could be used by local attackers to modify or truncate files in the underlying filesystem. It does not check the length of variable elements in a beacon head, leading to a buffer overflow. A local attacker could exploit this when a net namespace with a netnsid is assigned to cause a kernel panic and a denial of service. The attacker can achieve Program Counter control. A local attacker could use this to cause a denial of service system crash. Specifically, by adding to a write queue between disconnection and re-connection, a local attacker can trigger multiple use-after-free conditions.

CVE It was discovered that the Conexant TV card device driver for the Linux kernel did not properly deallocate memory in some error conditions. When processing a request to set or change this mapping, some input validation e. Canonical is offering Ubuntu Depending on how the target's code was built i. Thomas E. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu In the Linux kernel through 4. M validation does not prevent unintended execution modes. An attacker could use this to cause a denial of service or possibly execute arbitrary code.

This can cause the null skcipher to be freed while it is still in use leading to a local user being able to crash the system or possibly escalate privileges. Kernel versions 2. This occurs because an ID transformation takes place properly for the namespaced-to-kernel direction but not for the kernel-to-namespaced direction. Press ESC to close. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. The attack requires the iSCSI target to be enabled on the victim host. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. It was discovered that the state of network RNG in the Linux kernel was potentially observable. In the Linux kernel before 4. The Linux kernel 4.

An attacker can trigger a use-after-free and possibly gain privileges via certain thread creation, map, unmap, invalidation, and dereference operations. An issue was discovered in the Linux kernel before 4. Specifically, by adding to a write queue between disconnection and re-connection, a local attacker can trigger multiple use-after-free conditions. Further reading Loading Unless you manually uninstalled the standard kernel metapackages e. A remote attacker could use this to expose sensitive information. This vulnerability appears to have been fixed in after commit fa. Linux kernel version after commit bdcf0aea1 - 4. M validation does not prevent unintended execution modes.

Further reading Loading Linux Linux kernel version at least v4. The Linux Kernel version 3. Related notices USN : linux-image Use of this information constitutes acceptance for use in an AS IS condition. An issue was discovered in the Linux kernel through 4. Specifically, by adding to a write queue between disconnection and re-connection, a local attacker can trigger multiple use-after-free conditions. In the Linux kernel through 4. Related notices USN : linux-image-snapdragon, linux-image-gcp-lts Details It was discovered that the AMD Cryptographic Coprocessor device driver in the Linux kernel did not properly deallocate memory in some situations.

On the other hand, e. In the Linux kernel through 5. The attacker can achieve Program Counter control. It was discovered that the AMD Cryptographic Coprocessor device driver in the Linux kernel did not properly deallocate memory in some situations. CVE It was discovered that the NFS client implementation in the Linux kernel did not properly perform bounds checking before copying security labels in some situations. Further reading Loading Details It was discovered that the AMD Cryptographic Coprocessor device driver in the Linux kernel did not properly deallocate memory in some situations. This occurs because an ID transformation takes place properly for the namespaced-to-kernel direction but not for the kernel-to-namespaced direction.

The attacker can achieve Program Counter control. This is similar to CVE Join the discussion Ubuntu security updates mailing list Security announcements mailing list. An attacker can also cause a denial of service hypervisor panic via an illegal exception return. After a standard system update you need to reboot your computer to make all the necessary changes. When processing a request to set or change this mapping, some input validation e. This attack appear to be exploitable via An attacker on a must pass a very large, specially crafted packet to the bnx2x card. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu

There are NO warranties, implied or otherwise, with regard to this information or its use. Press ESC to close. Join the discussion Ubuntu security updates mailing list Security announcements mailing list. This attack appear to be exploitable via local code execution and the ability to use ptrace. It was discovered that the AMD Cryptographic Coprocessor device driver in the Linux kernel did not properly deallocate memory in some situations. References CVE A flaw was found in the crypto subsystem of the Linux kernel before version kernel An attacker can arbitrarily redirect the hypervisor flow of control with full register control.

Releases Ubuntu A remote attacker could use this to expose sensitive information. Related notices USN : linux-image References CVE Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly validate meta-data information. An attacker can trigger a use-after-free and possibly gain privileges via certain thread creation, map, unmap, invalidation, and dereference operations. An issue was discovered in the Linux kernel through 5. Specifically, by adding to a write queue between disconnection and re-connection, a local attacker can trigger multiple use-after-free conditions. Press ESC to close.

A flaw was found in the Linux Kernel where an attacker may be able to have an uncontrolled read to kernel-memory from within a vm guest. This can result in a kernel crash, or potentially in privilege escalation. In the Linux kernel before 5. This occurs because an ID transformation takes place properly for the namespaced-to-kernel direction but not for the kernel-to-namespaced direction. References CVE An attacker can also cause a denial of service hypervisor panic via an illegal exception return. The new file created with the same inode may contain leftover pages from cleancache and the old file data instead of the new one. A local attacker could use this to cause a denial of service memory exhaustion.