CVE-2009-0749

HIGH
7.8
CVSS Score
Published: March 2, 2009 at 08:00 PM UTC
Updated: June 16, 2026 at 11:05 PM UTC
3 products affected across 3 vendorsopenSUSELinux EnterpriseOptipng

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Severity
HIGH7.8
Exploit prediction
EPSS 2%

Description

Use-after-free vulnerability in the GIFReadNextExtension function in lib/pngxtern/gif/gifread.c in OptiPNG 0.6.2 and earlier allows context-dependent attackers to cause a denial of service (application crash) via a crafted GIF image that causes the realloc function to return a new pointer, which triggers memory corruption when the old pointer is accessed.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

References (14)

x_refsource_CONFIRMProduct
http://optipng.sourceforge.net
Third Party Advisoryx_refsource_SECUNIABroken LinkVendor Advisory
http://secunia.com/advisories/34035
Third Party Advisoryx_refsource_SECUNIABroken Link
http://secunia.com/advisories/34201
Third Party Advisoryx_refsource_SECUNIABroken Link
http://secunia.com/advisories/34259
Third Party Advisoryx_refsource_SECUNIABroken Link
http://secunia.com/advisories/35685

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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