Threats Tagged 'cve-2026-66484'

This update for cpio fixes the following issues: - CVE-2026-66484: improper sanitization in the tar archive extraction functionality allows for the creation of hard links outside intended directory via malicious tar archives (bsc#1274856). - CVE-2026-66485: improper memory management in the `make_path` function when allocating memory allows for denial of service via crafted archives (bsc#1274857). - CVE-2026-66486: improper encoding or escaping of output in the archive member listing functionality allows for terminal control sequence injection via crafted archive member names (bsc#1274858).

GNU cpio contains a Path Traversal vulnerability in its tar archive extraction functionality. When extracting a tar archive in copy-in mode with the --no-absolute-filenames option, the extracted file name is normalized but the tar hard-link target is passed to the link_to_name function without equivalent sanitization before calling link function. A tar archive provided by an attacker, containing a hard-link entry whose linkname is set to an absolute path outside the extraction directory, can cause cpio to create a hard link to an existing file outside the intended extraction directory, breaking the expected guarantee of --no-absolute-filenames and allowing archive-controlled linkage to external files. This issue has been fixed in commit e2b9cbdd3354d2b1569b7390d1bc15c1930559ad