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CVE-2009-3978
The nsGIFDecoder2::GifWrite function in decoders/gif/nsGIFDecoder2.cpp in libpr0n in Mozilla Firefox before 3.5.5 allows remote attackers…
Medium4.3EPSS 1.8%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The nsGIFDecoder2::GifWrite function in decoders/gif/nsGIFDecoder2.cpp in libpr0n in Mozilla Firefox before 3.5.5 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an animated GIF file with a large image size, a different vulnerability than CVE-2009-3373.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 1.8% · top 22% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (5)
- http://hg.mozilla.org/releases/mozilla-1.9.1/rev/edf189567edc (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.mozilla.com/en-US/firefox/3.5.5/releasenotes/ (opens in a new tab)x_refsource_MISCx_transferred
- http://www.h-online.com/open/news/item/Mozilla-fixes-critical-bugs-with-Firefox-3-5-5-852070.html (opens in a new tab)x_refsource_MISCx_transferred
- https://wiki.mozilla.org/Releases/Firefox_3.5.5/Test_Plan (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=525326 (opens in a new tab)x_refsource_CONFIRMx_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-2009-3978)Record last updated .