CVE-2021-28650

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-03-17 · updated 2026-06-17
Weakness: CWE-59

Description

autoar-extractor.c in GNOME gnome-autoar before 0.3.1, as used by GNOME Shell, Nautilus, and other software, allows Directory Traversal during extraction because it lacks a check of whether a file's parent is a symlink in certain complex situations. NOTE: this issue exists because of an incomplete fix for CVE-2020-36241.

Affected products

Fedoraproject Fedora: 34
Gnome-Autoar: before 0.3.1 — fixed in 0.3.1

How to fix

Upgrade to a fixed version: Gnome-Autoar 0.3.1. Check the vendor advisory for mitigations.

References

https://gitlab.gnome.org/GNOME/gnome-autoar/-/commit/8109c368c6cfdb593faaf698c2bf5da32bb1ace4
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BN5TVQ7OHZEGY6AGFLAZWCVCI53RYNHQ/
https://security.gentoo.org/glsa/202105-10
https://gitlab.gnome.org/GNOME/gnome-autoar/-/commit/8109c368c6cfdb593faaf698c2bf5da32bb1ace4
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BN5TVQ7OHZEGY6AGFLAZWCVCI53RYNHQ/
https://security.gentoo.org/glsa/202105-10

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