RHEL 9 : kpatch-patch (RHSA-2023:1681)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:1681 advisory. This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Security Fixe...

Oracle Linux 9 : kernel (ELSA-2023-1703)

The remote Oracle Linux 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2023-1703 advisory. - ovl: fail on invalid uid/gid mapping at copy up Miklos Szeredi 2165344 2165345 CVE-2023-0386 Tenable has extracted the preceding description block directly fr...

kernel: FUSE filesystem low-privileged user privileges escalation

A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalat...

RHEL 9 : kernel-rt (RHSA-2023:1691)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:1691 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Securi...

RHEL 9 : kernel (RHSA-2023:1703)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:1703 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: FUSE filesystem low-privileged user...

USN-6001-1 linux-aws vulnerabilities

Xuewei Feng, Chuanpu Fu, Qi Li, Kun Sun, and Ke Xu discovered that the TCP implementation in the Linux kernel did not properly handle IPID assignment. A remote attacker could use this to cause a denial of service connection termination or inject forged data. CVE-2020-36516 Ke Sun, Alyssa Milburn,...

Rocky Linux 8 : kernel (RLSA-2023:1566)

The remote Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2023:1566 advisory. - A flaw was found in the Linux kernel Traffic Control TC subsystem. Using a specific networking configuration redirecting egress packets to ingress usi...

Oracle Linux 8 : kernel (ELSA-2023-1566)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-1566 advisory. - ovl: fail on invalid uid/gid mapping at copy up Miklos Szeredi 2165341 2165342 CVE-2023-0386 - ALSA: pcm: Move rwsem lock inside sndctlelemread to...

Ubuntu 16.04 ESM : Linux kernel (AWS) vulnerabilities (USN-6001-1)

The remote Ubuntu 16.04 ESM host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6001-1 advisory. Xuewei Feng, Chuanpu Fu, Qi Li, Kun Sun, and Ke Xu discovered that the TCP implementation in the Linux kernel did not properly handle IPID assignment. A...

kernel: FUSE filesystem low-privileged user privileges escalation

A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalat...

kernel: FUSE filesystem low-privileged user privileges escalation

A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalat...

RHEL 8 : kernel (RHSA-2023:1554)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:1554 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: ALSA: pcm: Move rwsem lock inside...

RHEL 8 : kernel (RHSA-2023:1566)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:1566 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: stack overflow in doprocdointv...

RHEL 8 : kpatch-patch (RHSA-2023:1660)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:1660 advisory. This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel...

kernel: FUSE filesystem low-privileged user privileges escalation

A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalat...

kernel: FUSE filesystem low-privileged user privileges escalation

A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalat...

RHEL 8 : kernel-rt (RHSA-2023:1584)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:1584 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirement...

A flaw was found in the Linux kernel where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on the system.

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PT-2023-7043 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to the ovl copy up one function in the fs/overlayfs/copy up.c module of the Linux kernel's OverlayFS filesystem. It involves incorrect handling of st uid and st gi...

The vulnerability of the stat() function in the OverlayFS subsystem of Linux kernels allows attackers to increase their privileges.

The vulnerability of the stat function in the OverlayFS subsystem of Linux operating systems is related to deficiencies in access control when processing setuid and setgid attributes. Exploiting this vulnerability can allow attackers to enhance their privileges...