CVE-2021-23177

 

Published at: - 23-08-2022 06:15

Last modified: - 22-11-2022 09:15

Total changes: - 4

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

• https://bugzilla.redhat.com/show_bug.cgi?id=2024245
• https://github.com/libarchive/libarchive/issues/1565
• https://access.redhat.com/security/cve/CVE-2021-23177
• https://github.com/libarchive/libarchive/commit/fba4f123cc456d2b2538f811bb831483bf336bad
• [debian-lts-announce] 20221122 [SECURITY] [DLA 3202-1] libarchive security update-

 

Keywords

NVD

 

CVE-2021-23177

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures