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CVE-2008-3964

Multiple off-by-one errors in libpng before 1.2.32beta01, and 1.4 before 1.4.0beta34, allow context-dependent attackers to cause a denial of service (crash) or have unspecified other impact via a PNG image with crafted zTXt chunks, related to (1) the png_push_read_zTXt function in pngread.c, and possibly related to (2) pngtest.c.

Security Impact Summary

CVE-2008-3964 is a security vulnerability that . Impacting 1 product from libpng organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2008, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.

Published

2008-09-11T01:13:47.633

Last Modified

2026-04-23T00:35:47.467

Status

Modified

Source

[email protected]

Severity

CVSSv2: 4.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-193

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	libpng	libpng	< 1.2.32	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes
Application	libpng	libpng	1.4.0	Yes

References

http://secunia.com/advisories/31781 Third Party Advisory ([email protected])
http://secunia.com/advisories/33137 Third Party Advisory ([email protected])
http://secunia.com/advisories/35302 Third Party Advisory ([email protected])
http://secunia.com/advisories/35386 Third Party Advisory ([email protected])
http://security.gentoo.org/glsa/glsa-200812-15.xml Third Party Advisory ([email protected])
http://sourceforge.net/mailarchive/forum.php?thread_name=e56ccc8f0809180317u6a5306fg14683947affb3e1b%40mail.gmail.com&forum_name=png-mng-implement Third Party Advisory ([email protected])
http://sourceforge.net/project/shownotes.php?group_id=5624&release_id=624517 Product, Third Party Advisory ([email protected])
http://sourceforge.net/project/shownotes.php?release_id=624518 Broken Link, Patch ([email protected])
http://sourceforge.net/tracker/index.php?func=detail&aid=2095669&group_id=5624&atid=105624 Exploit, Third Party Advisory ([email protected])
http://sunsolve.sun.com/search/document.do?assetkey=1-66-259989-1 Broken Link ([email protected])
http://sunsolve.sun.com/search/document.do?assetkey=1-77-1020521.1-1 Broken Link ([email protected])
http://support.avaya.com/elmodocs2/security/ASA-2009-208.htm Third Party Advisory ([email protected])
http://www.kb.cert.org/vuls/id/889484 Third Party Advisory, US Government Resource ([email protected])
http://www.mandriva.com/security/advisories?name=MDVSA-2009:051 Broken Link ([email protected])
http://www.openwall.com/lists/oss-security/2008/09/09/3 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2008/09/09/8 Mailing List, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/31049 Third Party Advisory, VDB Entry ([email protected])
http://www.vupen.com/english/advisories/2008/2512 Permissions Required ([email protected])
http://www.vupen.com/english/advisories/2009/1462 Permissions Required ([email protected])
http://www.vupen.com/english/advisories/2009/1560 Permissions Required ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/44928 Third Party Advisory, VDB Entry ([email protected])
http://secunia.com/advisories/31781 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/33137 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/35302 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/35386 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://security.gentoo.org/glsa/glsa-200812-15.xml Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://sourceforge.net/mailarchive/forum.php?thread_name=e56ccc8f0809180317u6a5306fg14683947affb3e1b%40mail.gmail.com&forum_name=png-mng-implement Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://sourceforge.net/project/shownotes.php?group_id=5624&release_id=624517 Product, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://sourceforge.net/project/shownotes.php?release_id=624518 Broken Link, Patch (af854a3a-2127-422b-91ae-364da2661108)
http://sourceforge.net/tracker/index.php?func=detail&aid=2095669&group_id=5624&atid=105624 Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://sunsolve.sun.com/search/document.do?assetkey=1-66-259989-1 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://sunsolve.sun.com/search/document.do?assetkey=1-77-1020521.1-1 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://support.avaya.com/elmodocs2/security/ASA-2009-208.htm Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.kb.cert.org/vuls/id/889484 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
http://www.mandriva.com/security/advisories?name=MDVSA-2009:051 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2008/09/09/3 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2008/09/09/8 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/31049 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2008/2512 Permissions Required (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2009/1462 Permissions Required (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2009/1560 Permissions Required (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/44928 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For libpng's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.