MEDIUM
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.
http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063118.html
http://marc.info/?l=bugtraq&m=133951357207000&w=2
http://secunia.com/advisories/45046
http://secunia.com/advisories/45405
http://secunia.com/advisories/45492
http://secunia.com/advisories/49660
http://security.gentoo.org/glsa/glsa-201206-15.xml
http://support.apple.com/kb/HT5002
http://www.debian.org/security/2011/dsa-2287
http://www.libpng.org/pub/png/libpng.html
http://www.mandriva.com/security/advisories?name=MDVSA-2011:151
http://www.openwall.com/lists/oss-security/2011/07/13/2
http://www.securityfocus.com/bid/48660
Source: MITRE
Published: 2011-07-17
Updated: 2020-08-06
Type: CWE-476
Base Score: 4.3
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 6.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 2.8
Severity: MEDIUM