Vulnerability Details : CVE-2020-36241
Potential exploit
autoar-extractor.c in GNOME gnome-autoar through 0.2.4, 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 to a directory outside of the intended extraction location.
Vulnerability category: Directory traversal
Products affected by CVE-2020-36241
- cpe:2.3:a:gnome:gnome-autoar:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-36241
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 20 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-36241
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
2.1
|
LOW | AV:L/AC:L/Au:N/C:P/I:N/A:N |
3.9
|
2.9
|
NIST | |
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2020-36241
-
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Assigned by: nvd@nist.gov (Primary)
-
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.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-36241
-
https://gitlab.gnome.org/GNOME/gnome-autoar/-/issues/7
A malicious archive may be able to overwrite arbitrary files (#7) · Issues · GNOME / gnome-autoar · GitLabExploit;Issue Tracking;Vendor Advisory
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https://gitlab.gnome.org/GNOME/gnome-autoar/-/commit/adb067e645732fdbe7103516e506d09eb6a54429
AutoarExtractor: Do not extract files outside the destination dir (adb067e6) · Commits · GNOME / gnome-autoar · GitLabPatch;Vendor Advisory
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BN5TVQ7OHZEGY6AGFLAZWCVCI53RYNHQ/
[SECURITY] Fedora 34 Update: glib2-2.67.6-2.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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https://security.gentoo.org/glsa/202105-10
GNOME Autoar: User-assisted execution of arbitrary code (GLSA 202105-10) — Gentoo securityThird Party Advisory
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