[pkg-gnupg-maint] Bug#1124221: gnupg2: CVE-2025-68973

[Salvatore Bonaccorso]

Source: gnupg2
Version: 2.4.8-4
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>
Control: found -1 2.4.7-21
Control: found -1 2.2.40-1.1+deb12u1
Control: found -1 2.2.40-1.1

Hi,

The following vulnerability was published for gnupg2.

CVE-2025-68973[0]:
| In GnuPG through 2.4.8, armor_filter in g10/armor.c has two
| increments of an index variable where one is intended, leading to an
| out-of-bounds write for crafted input.


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-2025-68973
    https://www.cve.org/CVERecord?id=CVE-2025-68973
[1] https://github.com/gpg/gnupg/commit/115d138ba599328005c5321c0ef9f00355838ca9

Regards,
Salvatore