MEDIUM
CVE-2008-3964
CWE-193Published: September 11, 2008· Updated: Jun 16, 2026
4.3
CVSS v3.1
Official Description
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.
Technical Analysis
CVE-2008-3964 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityM
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityNone
IntegrityNone
AvailabilityP
AV:N/AC:M/Au:N/C:N/I:N/A:P
Affected Vendors & Products
libpng1 product(s)
libpng
Source: NVD CPE · 2 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (42)
→
http://secunia.com/advisories/31781Third Party Advisory
→
http://secunia.com/advisories/33137Third Party Advisory
→
http://secunia.com/advisories/35302Third Party Advisory
→
http://secunia.com/advisories/35386Third Party Advisory
→
http://security.gentoo.org/glsa/glsa-200812-15.xmlThird Party Advisory
→
→
http://sourceforge.net/project/shownotes.php?group_id=5624&release_id=624517Product · Third Party Advisory
→
http://sourceforge.net/project/shownotes.php?release_id=624518Broken Link · Patch
→
http://sourceforge.net/tracker/index.php?func=detail&aid=2095669&group_id=5624&atid=105624Exploit · Third Party Advisory
→
http://support.avaya.com/elmodocs2/security/ASA-2009-208.htmThird Party Advisory
→
http://www.kb.cert.org/vuls/id/889484Third Party Advisory · US Government Resource
→
http://www.openwall.com/lists/oss-security/2008/09/09/3Mailing List · Third Party Advisory
Quick Facts
CVE IDCVE-2008-3964
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-193
CISA KEVNo
Affected1 vendor(s)
PublishedSep 11, 2008
Related CVEs (CWE-193)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2008-3964 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.