7.8

CVE-2021-23177

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.

Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Libarchive ≫ Libarchive Version < 3.5.2
Fedoraproject ≫ Fedora Version35
Redhat ≫ Enterprise Linux Version8.0
Redhat ≫ Enterprise Linux Eus Version8.6
Debian ≫ Debian Linux Version10.0
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.05% 0.152
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-59 Improper Link Resolution Before File Access ('Link Following')

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

https://bugzilla.redhat.com/show_bug.cgi?id=2024245
Patch
Third Party Advisory
Issue Tracking
https://github.com/libarchive/libarchive/issues/1565
Patch
Third Party Advisory
Issue Tracking