CVE-2021-23177
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.4%
exploitation probability
0.4%top 67% of all CVEs
observed exploitation
nono source reports it
An improper link resolution flaw while extracting an archive can lead to changing the access control list (ACL) of the target of the link. 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 change the ACL of a file on the system and gain more privileges.
Affected products
n/a · libarchiveReferences
https://access.redhat.com/security/cve/CVE-2021-23177https://bugzilla.redhat.com/show_bug.cgi?id=2024245https://github.com/libarchive/libarchive/commit/fba4f123cc456d2b2538f811bb831483bf336badhttps://github.com/libarchive/libarchive/issues/1565https://lists.debian.org/debian-lts-announce/2022/11/msg00030.html