CVE-2008-5907

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

15/01/2009

Last modified:

09/04/2025

Description

The png_check_keyword function in pngwutil.c in libpng before 1.0.42, and 1.2.x before 1.2.34, might allow context-dependent attackers to set the value of an arbitrary memory location to zero via vectors involving creation of crafted PNG files with keywords, related to an implicit cast of the &#39;\0&#39; character constant to a NULL pointer. NOTE: some sources incorrectly report this as a double free vulnerability.

Impact

Vector 2.0

AV:N/AC:L/Au:N/C:N/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): Physical
Availability (A): None

Base Score 2.0

5.00

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:libpng:libpng::::::::		1.0.42 (excluding)
cpe:2.3:a:libpng:libpng::::::::	1.2.0 (including)	1.2.34 (excluding)
cpe:2.3:o:debian:debian_linux:4.0:::::::*
cpe:2.3:o:debian:debian_linux:5.0:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2008-5907

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools