Bug#985391: gnome-autoar: CVE-2021-28650

[Salvatore Bonaccorso]

Source: gnome-autoar
Version: 0.2.4-3
Severity: important
Tags: security upstream
Forwarded: https://gitlab.gnome.org/GNOME/gnome-autoar/-/issues/12
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>,seb128 at ubuntu.com
Control: fixed -1 0.3.1-1

Hi,

I'm X-Debbugs-CC'ing as well explicitly Sebastien.

The following vulnerability was published for gnome-autoar.

CVE-2021-28650[0]:
| 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.

It appears that CVE-2020-36241 was not fixed completely, and resulted
in CVE-2021-28650 with upstream commit [1]. The corresponding upstream
issue is not (yet?) public, but maybe you have access to it.

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2021-28650
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28650
[1] https://gitlab.gnome.org/GNOME/gnome-autoar/-/commit/8109c368c6cfdb593faaf698c2bf5da32bb1ace4

Regards,
Salvatore