Rapid7’s 2026 Global Cybersecurity Summit is now available on-demand.Watch sessions.
Rapid7

vulnerability

CentOS Linux: CVE-2021-23177: Moderate: libarchive security update (CESA-2022:0892)

Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
Mar 15, 2022
Added
Mar 16, 2022
Modified
Jan 28, 2025

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.

Solutions

centos-upgrade-bsdcat-debuginfocentos-upgrade-bsdcpio-debuginfocentos-upgrade-bsdtarcentos-upgrade-bsdtar-debuginfocentos-upgrade-libarchivecentos-upgrade-libarchive-debuginfocentos-upgrade-libarchive-debugsource
Title
Rapid7 Labs

2026 Global Threat Landscape Report

The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.