[From nobody Sat Aug 15 18:11:07 2026
Received: (at submit) by bugs.debian.org; 15 Aug 2026 14:54:23 +0000
X-Spam-Checker-Version: SpamAssassin 4.0.1-bugs.debian.org_2005_01_02
 (2024-03-25) on buxtehude.debian.org
X-Spam-Level: 
X-Spam-Status: No, score=-11.0 required=4.0 tests=BAYES_00,FROMDEVELOPER,
 MD5_SHA1_SUM,NO_RELAYS,XMAILER_REPORTBUG autolearn=ham
 autolearn_force=no version=4.0.1-bugs.debian.org_2005_01_02
X-Spam-Bayes: score:0.0000 Tokens: new, 14; hammy, 149; neutral, 41; spammy,
 1. spammytokens:0.940-+--H*r:bugs.debian.org
 hammytokens:0.000-+--XDebbugsCc, 0.000-+--X-Debbugs-Cc,
 0.000-+--H*F:U*carnil, 0.000-+--H*Ad:N*Bug, 0.000-+--HTo:N*Debian
Return-path: <carnil@debian.org>
Received: via submission by buxtehude.debian.org with esmtp (Exim 4.96)
 (envelope-from <carnil@debian.org>) id 1wvFmA-006uEE-2N
 for submit@bugs.debian.org; Sat, 15 Aug 2026 14:54:23 +0000
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
From: Salvatore Bonaccorso <carnil@debian.org>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: p11-kit: CVE-2026-18938
Message-ID: <178680566176.1667164.13608220058243421736.reportbug@eldamar.lan>
X-Mailer: reportbug 13.2.0+nmu1
Date: Sat, 15 Aug 2026 16:54:21 +0200
Delivered-To: submit@bugs.debian.org

Source: p11-kit
Version: 0.26.4-1
Severity: important
Tags: security upstream
Forwarded: https://github.com/p11-glue/p11-kit/pull/777
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>

Hi,

The following vulnerability was published for p11-kit.

CVE-2026-18938[0]:
| A flaw was found in p11-kit. A local attacker, or one with
| equivalent access to a reachable RPC channel, could exploit an
| integer overflow vulnerability. By sending specially crafted
| messages, the attacker can cause the system to miscalculate memory
| allocation for nested attributes. This leads to a memory corruption
| issue, specifically a heap out-of-bounds write, which can crash the
| p11-kit RPC parsing process, resulting in a Denial of Service (DoS).
| This vulnerability is only exploitable on 32 bit systems.


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-2026-18938
    https://www.cve.org/CVERecord?id=CVE-2026-18938
[1] https://github.com/p11-glue/p11-kit/pull/777
[2] https://github.com/p11-glue/p11-kit/commit/3e64244e538550c6a7fcf826fa8c50a4604416dc

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore
]