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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…
High7.8EPSS 1.6%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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 (application crash) via a crafted GIF image that causes the realloc function to return a new pointer, which triggers memory corruption when the old pointer is accessed.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.6% · top 25% of all CVEs (4 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
n/a
- affected n/a
References (14)
- 34201 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 34259 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 34035 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 33873 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- SUSE-SR:2009:006 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- ADV-2009-0510 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- http://optipng.sourceforge.net (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://sourceforge.net/tracker/index.php?func=detail&aid=2582013&group_id=151404&atid=780913 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 35685 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- SUSE-SR:2009:012 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- [oss-security] 20090224 CVE request: optipng security release (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20090225 Re: CVE request: optipng security release (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- GLSA-200903-12 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- optipng-gifreadnextextension-code-execution(48879) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2009-0749)Record last updated .