Vulnerabilities > CVE-2021-31566
Attack vector
LOCAL Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
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.
Vulnerable Configurations
References
- https://access.redhat.com/security/cve/CVE-2021-31566
- https://access.redhat.com/security/cve/CVE-2021-31566
- https://bugzilla.redhat.com/show_bug.cgi?id=2024237
- https://bugzilla.redhat.com/show_bug.cgi?id=2024237
- https://github.com/libarchive/libarchive/commit/b41daecb5ccb4c8e3b2c53fd6147109fc12c3043
- https://github.com/libarchive/libarchive/commit/b41daecb5ccb4c8e3b2c53fd6147109fc12c3043
- https://github.com/libarchive/libarchive/issues/1566
- https://github.com/libarchive/libarchive/issues/1566
- https://lists.debian.org/debian-lts-announce/2022/11/msg00030.html
- https://lists.debian.org/debian-lts-announce/2022/11/msg00030.html