CVE-2021-3493

CVE-2021-3493 Ubuntu OverlayFS Local Privesc Affected Versions Ubuntu 20.10 Ubuntu 20.04 LTS Ubuntu 19.04 Ubuntu 18.04 LTS Ubuntu 16.04 LTS Ubuntu 14.04 ESM Usage gcc exploit.c -o exploit ./exploit Description "Ubuntu specific issue in the overlayfs file system in the Linux kernel where it did no...

CVE-2021-3493

CVE-2021-3493 Ubuntu OverlayFS Local Privesc Affected Versions Ubuntu 20.10 Ubuntu 20.04 LTS Ubuntu 18.04 LTS Ubuntu 16.04 LTS Ubuntu 14.04 ESM Usage gcc exploit.c -o exploit chmod +x exploit ./exploit Description "Ubuntu specific issue in the overlayfs file system in the Linux kernel where it di...

CVE-2021-3493

CVE-2021-3493 Ubuntu OverlayFS Local Privesc Affected Versions Ubuntu 20.10 Ubuntu 20.04 LTS Ubuntu 19.04 Ubuntu 18.04 LTS Ubuntu 16.04 LTS Ubuntu 14.04 ESM Usage gcc exploit.c -o exploit ./exploit Description "Ubuntu specific issue in the overlayfs file system in the Linux kernel where it did no...

CVE-2021-3493

CVE-2021-3493 Ubuntu OverlayFS Local Privesc Affected Versions Ubuntu 20.10 Ubuntu 20.04 LTS Ubuntu 19.04 Ubuntu 18.04 LTS Ubuntu 16.04 LTS Ubuntu 14.04 ESM Usage gcc exploit.c -o exploit ./exploit Description "Ubuntu specific issue in the overlayfs file system in the Linux kernel where it did no...

CVE-2023-2640-3262-PoC

CVE-2023-2640/3262-PoC Minimal PoCs for Ubuntu OverlayFS local privilege escalation vulnerabilities. CVEs CVE-2023-2640 – OverlayFS permission handling issue CVE-2023-3262 – OverlayFS capability escalation issue Files CVE-2023-2640.sh – basic OverlayFS behavior test CVE-2023-3262.sh – capability...

CVE-2021-3493

CVE-2021-3493 — Ubuntu OverlayFS Local Privilege Escalation A working proof-of-concept for CVE-2021-3493 , a local privilege escalation vulnerability in the Ubuntu kernel's OverlayFS implementation. An unprivileged user can mount an overlay filesystem inside a user namespace and set arbitrary fil...

CVE-2021-3493

CVE-2021-3493 Ubuntu OverlayFS Local Privesc Affected Versions Ubuntu 20.10 Ubuntu 20.04 LTS Ubuntu 18.04 LTS Ubuntu 16.04 LTS Ubuntu 14.04 ESM Usage gcc exploit.c -o exploit chmod +x exploit ./exploit Description "Ubuntu specific issue in the overlayfs file system in the Linux kernel where it di...

CVE-2021-3493

CVE-2021-3493 Ubuntu OverlayFS Local Privesc Description "Ubuntu specific issue in the overlayfs file system in the Linux kernel where it did not properly validate the application of file system capabilities with respect to user namespaces. A local attacker could use this to gain elevated...

Exploit for Privilege Context Switching Error in Canonical Ubuntu_Linux

CVE-2021-3493 – Ubuntu OverlayFS Local Privilege Escalation...

Exploit for Privilege Context Switching Error in Canonical Ubuntu_Linux

This is a PoC exploit for CVE-2021-3493, a local privilege escalation vulnerability in Ubuntu OverlayFS. The exploit targets Ubuntu versions 20.10, 20.04 LTS, 19.04, 18.04 LTS, 16.04 LTS, and 14.04 ESM. The vulnerability arises from a Linux kernel issue where it did not properly validate the...