CVE-2009-0749
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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.55% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 74.6% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2009-03-02 20:00Z17 YR AGO
- Last updated
- 2024-08-07 04:48Z2 YR AGO
- Reserved
- 2009-03-02
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-416Use After FreeVariant
- Data version
- 5.1
- Document digest
- 0979516ce945d92ed7be5d6c6f16dab3c512dd56b32574dd948efa69eb26f0bb
05 Affected products
06 References
- secunia.com34201http://secunia.com/advisories/34201
- secunia.com34259http://secunia.com/advisories/34259
- secunia.com34035http://secunia.com/advisories/34035
- www.securityfocus.com33873http://www.securityfocus.com/bid/33873
- lists.opensuse.orgSUSE-SR:2009:006http://lists.opensuse.org/opensuse-security-announce/2009-03/msg00001.html
- www.vupen.comADV-2009-0510http://www.vupen.com/english/advisories/2009/0510
- optipng.sourceforge.nethttp://optipng.sourceforge.net
- sourceforge.nethttp://sourceforge.net/tracker/index.php?func=detail&aid=2582013&group_id=151404&atid=780913
- secunia.com35685http://secunia.com/advisories/35685
- lists.opensuse.orgSUSE-SR:2009:012http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html
- www.openwall.com[oss-security] 20090224 CVE request: optipng security releasehttp://www.openwall.com/lists/oss-security/2009/02/24/2
- www.openwall.com[oss-security] 20090225 Re: CVE request: optipng security releasehttp://www.openwall.com/lists/oss-security/2009/02/25/4
- www.gentoo.orgGLSA-200903-12http://www.gentoo.org/security/en/glsa/glsa-200903-12.xml
- exchange.xforce.ibmcloud.comoptipng-gifreadnextextension-code-execution(48879)https://exchange.xforce.ibmcloud.com/vulnerabilities/48879
07 Fixed in
Debian 12
- optipng Fixed in 0.6.2.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- optipng Fixed in 0.6.2.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- optipng Fixed in 0.6.2.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.