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CVE-2021-28650

Published: 17 March 2021

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.

Priority

Medium

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
gnome-autoar
Launchpad, Ubuntu, Debian
hirsute Not vulnerable
(0.3.1-1)
trusty Does not exist

upstream
Released (0.3.1-1)
xenial Does not exist

bionic
Released (0.2.3-1ubuntu0.3)
focal
Released (0.2.3-2ubuntu0.3)
groovy
Released (0.2.4-2ubuntu0.3)
Patches:
upstream: https://gitlab.gnome.org/GNOME/gnome-autoar/-/merge_requests/15/commits
upstream: https://gitlab.gnome.org/GNOME/gnome-autoar/-/commit/f4792b2178c7eec5351eca9b2d8d19c884af7ba3 (bp)
upstream: https://gitlab.gnome.org/GNOME/gnome-autoar/-/commit/f2175bd3a8604c433129d2f39a7dcb71170d646f (bp)
upstream: https://gitlab.gnome.org/GNOME/gnome-autoar/-/commit/b5c8efcd87afa8e40d87c8e54ba446298da9136d (bp)
upstream: https://gitlab.gnome.org/GNOME/gnome-autoar/-/commit/9ba3d2da6818ccab92197a66a5356daa23c1604d (bp)
upstream: https://gitlab.gnome.org/GNOME/gnome-autoar/-/commit/2955faea3dddbeea7c8b2e64e1a7efebdc64f430 (bp)
upstream: https://gitlab.gnome.org/GNOME/gnome-autoar/-/commit/f26d32e02d04ed6686ec9e2af737f0a6258c582c (bp)
upstream: https://gitlab.gnome.org/GNOME/gnome-autoar/-/commit/88e21e8aa2841216fa1d7fba617a8692912af51e (bp)
upstream: https://gitlab.gnome.org/GNOME/gnome-autoar/-/commit/c4b0b9c9b6522058dc43ee817b0e0bbd1f030617 (bp)
upstream: https://gitlab.gnome.org/GNOME/gnome-autoar/-/commit/7f2e1868df66342abd1bb9f456df2b8d5668ef2f (bp)
upstream: https://gitlab.gnome.org/GNOME/gnome-autoar/-/commit/8109c368c6cfdb593faaf698c2bf5da32bb1ace4
upstream: https://gitlab.gnome.org/GNOME/gnome-autoar/-/commit/2c8d16395cd9b493d21fa5c33da58339089fd723
upstream: https://gitlab.gnome.org/GNOME/gnome-autoar/-/commit/32957ff7841c57cc1d95f7acafab6292407f462e (tests)

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N