SUSE CVE-2020-5291

Bubblewrap bwrap before version 0.4.1, if installed in setuid mode and the kernel supports unprivileged user namespaces, then the bwrap --userns2 option can be used to make the setuid process keep running as root while being traceable. This can in turn be used to gain root permissions. Note that...

SUSE CVE-2020-16120

Overlayfs did not properly perform permission checking when copying up files in an overlayfs and could be exploited from within a user namespace, if, for example, unprivileged user namespaces were allowed. It was possible to have a file not readable by an unprivileged user to be copied to a...

SUSE CVE-2021-3493

The overlayfs implementation in the linux kernel did not properly validate with respect to user namespaces the setting of file capabilities on files in an underlying file system. Due to the combination of unprivileged user namespaces along with a patch carried in the Ubuntu kernel to allow...

SUSE CVE-2022-32250

net/netfilter/nftablesapi.c in the Linux kernel through 5.18.1 allows a local user able to create user/net namespaces to escalate privileges to root because an incorrect NFTSTATEFULEXPR check leads to a use-after-free...

CVE-2023-23455

A denial of service flaw was found in atmtcenqueue in net/sched/schatm.c in the Linux kernel. This issue may allow a local attacker to cause a denial of service due to type confusion. Non-negative numbers could indicate a TCACTSHOT condition rather than valid classification results. Mitigation Th...

CVE-2022-47929

A NULL pointer dereference flaw was found in qdiscgraft in net/sched/schapi.c in the Linux kernel. This issue may allow a local unprivileged user to trigger a denial of service if the allocworkqueue function return is not validated in time of failure, resulting in a system crash or leaked interna...

Enhancing Kubernetes security with user namespaces

Learn how to improve cluster security with user namespaces, a new feature introduced in Kubernetes v1.25...

CVE-2023-0179

A buffer overflow vulnerability was found in the Netfilter subsystem in the Linux Kernel. This issue could allow the leakage of both stack and heap addresses, and potentially allow Local Privilege Escalation to the root user via arbitrary code execution. Mitigation This flaw can be mitigated by...

Linux Kernel Privilege Escalation Vulnerability

The overlayfs stacking file system in Linux kernel does not properly validate the application of file capabilities against user namespaces, which could lead to privilege escalation...

Rocky Linux 8 : kernel (RLSA-2022:5819)

The remote Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2022:5819 advisory. - net/netfilter/nftablesapi.c in the Linux kernel through 5.18.1 allows a local user able to create user/net namespaces to escalate privileges to root because an...

Exploit for Double Free in Linux Linux_Kernel

CVE-2022-2588 The fix The bug is fixed in Linux v5.19 by th...

Oracle Linux 9 : kernel (ELSA-2022-6003)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2022-6003 advisory. 5.14.0-70.22.1.0.10.OL9 lockdown: also lock down previous kgdb use Daniel Thompson Orabug: 34290418 CVE-2022-21499 5.14.0-70.22.10.OL9 Update Oracle...

kernel: use-after-free in tc_new_tfilter() in net/sched/cls_api.c

A use-after-free vulnerability was found in the tcnewtfilter function in net/sched/clsapi.c in the Linux kernel. The availability of local, unprivileged user namespaces allows privilege escalation...

Amazon Linux 2 : kernel (ALASKERNEL-5.10-2022-016)

The version of kernel installed on the remote host is prior to 5.10.126-117.518. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2022-016 advisory. Due to the small table perturb size, a memory leak flaw was found in the Linux kernel's TCP source port...

CVE-2022-34918

A heap buffer overflow flaw was found in the Linux kernel’s Netfilter subsystem in the way a user provides incorrect input of the NFTDATAVERDICT type. This flaw allows a local user to crash or potentially escalate their privileges on the system. Mitigation In order to trigger the issue, it requir...

CVE-2022-32250

A use-after-free vulnerability was found in the Linux kernel's Netfilter subsystem in net/netfilter/nftablesapi.c. This flaw allows a local attacker with user access to cause a privilege escalation issue. Mitigation In order to trigger the issue, it requires the ability to create user/net...

CVE-2022-32250

net/netfilter/nftablesapi.c in the Linux kernel through 5.18.1 allows a local user able to create user/net namespaces to escalate privileges to root because an incorrect NFTSTATEFULEXPR check leads to a use-after-free...

CVE-2022-32250

net/netfilter/nftablesapi.c in the Linux kernel through 5.18.1 allows a local user able to create user/net namespaces to escalate privileges to root because an incorrect NFTSTATEFULEXPR check leads to a use-after-free...

UBUNTU-CVE-2022-32250

net/netfilter/nftablesapi.c in the Linux kernel through 5.18.1 allows a local user able to create user/net namespaces to escalate privileges to root because an incorrect NFTSTATEFULEXPR check leads to a use-after-free...

Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-5358-2)

The remote Ubuntu 18.04 LTS / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5358-2 advisory. It was discovered that the network traffic control implementation in the Linux kernel contained a use- after-free vulnerability. A local...