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securityvulnsSecurityvulnsSECURITYVULNS:DOC:15095
HistoryNov 16, 2006 - 12:00 a.m.

[SA22900] libpng sPLT Chunk Handling Denial of Service

2006-11-1600:00:00
vulners.com
12

TITLE:
libpng sPLT Chunk Handling Denial of Service

SECUNIA ADVISORY ID:
SA22900

VERIFY ADVISORY:
http://secunia.com/advisories/22900/

CRITICAL:
Less critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
libpng 1.x
http://secunia.com/product/3439/

DESCRIPTION:
Tavis Ormandy has reported a vulnerability in libpng, which can be
exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an out-of-bounds read error in the
"png_set_sPLT()" function in pngset.c. This can be exploited by
tricking an application using the library to process a specially
crafted PNG file.

The vulnerability is reported in version 1.2.12. Other versions may
also be affected.

SOLUTION:
Do not open untrusted PNG files.

PROVIDED AND/OR DISCOVERED BY:
Tavis Ormandy, Gentoo Linux Security Auditing Team.

ORIGINAL ADVISORY:
http://bugs.gentoo.org/show_bug.cgi?id=154380


About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/

Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
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