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CVE-2008-5907

5.0 · MEDIUM

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 v…

Published Jan 15, 2009libpngEPSS 2.56%

Overview

CVE-2008-5907 is a medium-severity vulnerability affecting libpng libpng. It was published on January 15, 2009 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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 '\0' character constant to a NULL pointer. NOTE: some sources incorrectly report this as a double free vulnerability.

Remediation

Check the references section for vendor advisories and patches from libpng. Update libpng to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
libpnglibpng>= 0, < 1.0.42Affected

References

Reflibpng.sourceforge.net/index.htmlReflists.opensuse.org/opensuse-security-announce/2009-02/msg00000.htmlRefopenwall.com/lists/oss-security/2009/01/09/1Refsecunia.com/advisories/34320Refsecunia.com/advisories/34388Refsecurity.gentoo.org/glsa/glsa-200903-28.xmlRefsourceforge.net/mailarchive/forum.php?thread_name=4B6F0239C13D0245820603C036D180BC79FBAA%40CABOTUKEXCH01.cabot.local&forum_name=png-mng-implementRefwww.debian.org/security/2009/dsa-1750Refwww.mandriva.com/security/advisories?name=MDVSA-2009:051Refexchange.xforce.ibmcloud.com/vulnerabilities/48128

How CyberStrike helps

Frequently asked questions

What is CVE-2008-5907?

CVE-2008-5907 is a medium-severity vulnerability affecting libpng libpng. It was published on January 15, 2009 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2008-5907?

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2008-5907?

Check the references section for vendor advisories and patches from libpng. Update libpng to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2008-5907?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2008-5907 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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