High severity7.8NVD Advisory· Published Aug 23, 2022· Updated Jun 17, 2026
CVE-2021-23177
CVE-2021-23177
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
24cpe:2.3:a:libarchive:libarchive:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:libarchive:libarchive:*:*:*:*:*:*:*:*range: <3.5.2
- (no CPE)
- cpe:2.3:a:redhat:codeready_linux_builder:-:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.6:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.6:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.6:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:*:*:*:*:*:*:*
- osv-coords10 versionspkg:rpm/almalinux/bsdtarpkg:rpm/almalinux/libarchivepkg:rpm/almalinux/libarchive-develpkg:rpm/opensuse/bsdtar&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/libarchive&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/libarchive&distro=openSUSE%20Leap%2015.4pkg:rpm/suse/libarchive&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/libarchive&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4pkg:rpm/suse/libarchive&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP3pkg:rpm/suse/libarchive&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP4
< 3.3.3-3.el8_5+ 9 more
- (no CPE)range: < 3.3.3-3.el8_5
- (no CPE)range: < 3.3.3-3.el8_5
- (no CPE)range: < 3.3.3-3.el8_5
- (no CPE)range: < 3.7.2-1.1
- (no CPE)range: < 3.4.2-150200.4.9.1
- (no CPE)range: < 3.5.1-150400.3.6.1
- (no CPE)range: < 3.4.2-150200.4.9.1
- (no CPE)range: < 3.5.1-150400.3.6.1
- (no CPE)range: < 3.4.2-150200.4.9.1
- (no CPE)range: < 3.5.1-150400.3.6.1
Patches
Vulnerability mechanics
References
5- bugzilla.redhat.com/show_bug.cginvdIssue TrackingPatchThird Party Advisory
- github.com/libarchive/libarchive/commit/fba4f123cc456d2b2538f811bb831483bf336badnvdPatchThird Party Advisory
- github.com/libarchive/libarchive/issues/1565nvdIssue TrackingPatchThird Party Advisory
- access.redhat.com/security/cve/CVE-2021-23177nvdThird Party Advisory
- lists.debian.org/debian-lts-announce/2022/11/msg00030.htmlnvdMailing ListThird Party Advisory
News mentions
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