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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.

• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f11ada10d0a
• https://security.netapp.com/advisory/ntap-20230420-0004/
• https://www.debian.org/security/2023/dsa-5402 vendor-advisory
• https://lists.debian.org/debian-lts-announce/2023/06/msg00008.html mailing-list
• http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html
• https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html mailing-list
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-0386 government-resource