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VULNERABILITIES

CVE-2021-23177 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://access.redhat.com/security/cve/CVE-2021-23177 CVEThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2024245 CVEIssue TrackingPatchThird Party Advisory
https://github.com/libarchive/libarchive/commit/fba4f123cc456d2b2538f811bb831483bf336bad CVEPatchThird Party Advisory
https://github.com/libarchive/libarchive/issues/1565 CVEIssue TrackingPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00030.html CVEMailing ListThird Party Advisory

see all 10 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-59Improper Link Resolution Before File Access ('Link Following')[email protected]
CWE-59Improper Link Resolution Before File Access ('Link Following')[email protected]

Affected Products

ProductVersions

Change History

6 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-23177
NVD Published Date:
Aug 23, 2022
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-23177 Details - Not Deferred