Bug 1940026 (CVE-2021-28650) - CVE-2021-28650 gnome-autoar: Directory traversal via directory symbolic links pointing outside of the destination directory (incomplete CVE-2020-36241 fix)
Summary: CVE-2021-28650 gnome-autoar: Directory traversal via directory symbolic links...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-28650
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1928701 1928702 1940027
Blocks: 1940028
TreeView+ depends on / blocked
 
Reported: 2021-03-17 13:30 UTC by Guilherme de Almeida Suckevicz
Modified: 2022-04-17 21:13 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2021-11-09 23:25:33 UTC
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:4381 0 None None None 2021-11-09 18:30:45 UTC

Description Guilherme de Almeida Suckevicz 2021-03-17 13:30:02 UTC 
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.

Reference and upstream patch:
https://gitlab.gnome.org/GNOME/gnome-autoar/-/commit/8109c368c6cfdb593faaf698c2bf5da32bb1ace4
Comment 1 Guilherme de Almeida Suckevicz 2021-03-17 13:31:13 UTC 
Created gnome-autoar tracking bugs for this issue:

Affects: fedora-all [bug 1940027]
Comment 4 errata-xmlrpc 2021-11-09 18:30:43 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:4381 https://access.redhat.com/errata/RHSA-2021:4381
Comment 5 Product Security DevOps Team 2021-11-09 23:25:31 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-28650
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