An improper link resolution flaw can occur while extracting an archive leading to changing modes, times, access control lists, and flags of a file outside of the archive. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to gain more privileges in a system.
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
| Link | Tags |
|---|---|
| https://github.com/libarchive/libarchive/issues/1566 | issue tracking third party advisory patch |
| https://github.com/libarchive/libarchive/commit/b41daecb5ccb4c8e3b2c53fd6147109fc12c3043 | third party advisory patch |
| https://bugzilla.redhat.com/show_bug.cgi?id=2024237 | issue tracking third party advisory patch |
| https://access.redhat.com/security/cve/CVE-2021-31566 | third party advisory |
| https://lists.debian.org/debian-lts-announce/2022/11/msg00030.html | third party advisory mailing list |