CVE-2024-21626

CVE-2024-21626 For detailed explanation for this vulnerability, plz refer to my article. Exploit Exploit via Running a Container No need to build a custom image, just run a container with -w parameter: docker run -w /proc/self/fd/8 --name cve-2024-21626 --rm -it debian:bookworm Exploit via Execin...

CVE-2026-5555-Container-Escape-via-proc-self-fd-Symlink-in-Shared-Volume

CVE-2026-5555 – Container Escape via /proc/self/fd Symlink Overview A shared volume mounted with rshared propagation allows a malicious container to create a symbolic link pointing to a host file through /proc/self/fd. The host process writing to the volume follows the symlink, overwriting critic...

UNIX Symbolic Link (Symlink) Following

Overview Affected versions of this package are vulnerable to UNIX Symbolic Link Symlink Following in the OpenAtNoFollow process. An attacker can cause unintended file ownership or permission changes on host files by placing a symlink in the virt-launcher filesystem, which is then followed via...

PT-2026-52087

Name of the Vulnerable Software and Affected Versions KubeVirt affected versions not specified Description A flaw exists in the safepath package used by virt-handler. The OpenAtNoFollow function utilizes O PATH|O NOFOLLOW to obtain a file descriptor for a path leaf; however, subsequent operations...

CLSA-2026-1778599539 Fix CVE(s): CVE-2026-4878

SECURITY UPDATE: TOCTOU race condition in capsetfile - debian/patches/CVE-2026-4878.patch: open the target file and operate on /proc/self/fd/N so the inode is locked between the regular-file check and the xattr update - CVE-2026-4878...

Exploit for File Descriptor Leak in Linuxfoundation Runc

CVE-2024-21626 For detailed explanation for this vulnerabilit...

SUSE CVE-2022-45412

When resolving a symlink such as file:///proc/self/fd/1, an error message may be produced where the symlink was resolved to a string containing unitialized memory in the buffer. This bug only affects Thunderbird on Unix-based operated systems Android, Linux, MacOS. Windows is unaffected.. This...

Mozilla: Symlinks may resolve to partially uninitialized buffers

The Mozilla Foundation Security Advisory describes this flaw as: When resolving a symlink such as file:///proc/self/fd/1, an error message may be produced where the symlink was resolved to a string containing unitialized memory in the buffer...

Mozilla: Symlinks may resolve to partially uninitialized buffers

The Mozilla Foundation Security Advisory describes this flaw as: When resolving a symlink such as file:///proc/self/fd/1, an error message may be produced where the symlink was resolved to a string containing unitialized memory in the buffer...

Mozilla: Symlinks may resolve to partially uninitialized buffers

The Mozilla Foundation Security Advisory describes this flaw as: When resolving a symlink such as file:///proc/self/fd/1, an error message may be produced where the symlink was resolved to a string containing unitialized memory in the buffer...

Mozilla: Symlinks may resolve to partially uninitialized buffers

The Mozilla Foundation Security Advisory describes this flaw as: When resolving a symlink such as file:///proc/self/fd/1, an error message may be produced where the symlink was resolved to a string containing unitialized memory in the buffer...

curl: Unexpected access to process open files via file:///proc/self/fd/n

Summary: fileconnect routine https://github.com/curl/curl/blob/1b71bc532bde8621fd3260843f8197182a467ff2/lib/file.cL134 does not prevent access to /proc/self/fd pseudo filesystem. Application using libcurl and accepting URLs to fetch can be tricked to return content of any open file by passing a...