CVE-2011-2691

MEDIUM

Libpng < 1.0.55 - NULL Pointer Dereference

Title source: rule

Description

The png_err function in pngerror.c in libpng 1.0.x before 1.0.55, 1.2.x before 1.2.45, 1.4.x before 1.4.8, and 1.5.x before 1.5.4 makes a function call using a NULL pointer argument instead of an empty-string argument, which allows remote attackers to cause a denial of service (application crash) via a crafted PNG image.

References (17)

[Product] http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng%3Ba=commit%3Bh=9dad5e37aef295b4ef8dea39392b652deebc9261

[Mailing List, Third Party Advisory] http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html

[Mailing List, Third Party Advisory] http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063118.html

[Mailing List, Third Party Advisory] http://marc.info/?l=bugtraq&m=133951357207000&w=2

[Broken Link] http://secunia.com/advisories/45046

[Broken Link] http://secunia.com/advisories/45405

[Broken Link] http://secunia.com/advisories/45492

[Broken Link] http://secunia.com/advisories/49660

[Third Party Advisory] http://security.gentoo.org/glsa/glsa-201206-15.xml

[Third Party Advisory] http://support.apple.com/kb/HT5002

[Third Party Advisory] http://www.debian.org/security/2011/dsa-2287

[Product, Vendor Advisory] http://www.libpng.org/pub/png/libpng.html

[Broken Link] http://www.mandriva.com/security/advisories?name=MDVSA-2011:151

[Mailing List, Third Party Advisory] http://www.openwall.com/lists/oss-security/2011/07/13/2

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/48660

[Exploit, Issue Tracking, Patch, Third Party Advisory] https://bugzilla.redhat.com/show_bug.cgi?id=720608

[Third Party Advisory, VDB Entry] https://exchange.xforce.ibmcloud.com/vulnerabilities/68537

Scores

CVSS v3 6.5

EPSS 0.0769

EPSS Percentile 91.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Classification

CWE

CWE-476

Status draft

Affected Products (4)

libpng/libpng < 1.0.55

fedoraproject/fedora

debian/debian_linux

debian/debian_linux

Timeline

Published Jul 17, 2011

Tracked Since Feb 18, 2026