Back
CVE-2012-3544
Apache Tomcat 6.x before 6.0.37 and 7.x before 7.0.30 does not properly handle chunk extensions in chunked transfer coding, which allows…
Medium5.0EPSS 11.0%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
Apache Tomcat 6.x before 6.0.37 and 7.x before 7.0.30 does not properly handle chunk extensions in chunked transfer coding, which allows remote attackers to cause a denial of service by streaming data.
Timeline
ID reserved
By redhat
- 12 months later
· 12 months later
Published
- 13 years later
· 13 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 11.0% · top 4.1% of all CVEs (8 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
Affected products
n/a
- affected n/a
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenorg.apache.tomcat:tomcatGHSA-qfxv-3ppc-7qg5 (opens in a new tab)
References (21)
- http://svn.apache.org/viewvc?view=revision&revision=1378702 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 59797 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://svn.apache.org/viewvc?view=revision&revision=1378921 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.vmware.com/security/advisories/VMSA-2014-0012.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://tomcat.apache.org/security-7.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 20141205 NEW: VMSA-2014-0012 - VMware vSphere product updates address security vulnerabilities (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- http://svn.apache.org/viewvc?view=revision&revision=1476592 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/coyote/http11/filters/ChunkedInputFilter.java?r1=1476592&r2=1476591&pathrev=1476592 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://tomcat.apache.org/security-6.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 20141205 NEW: VMSA-2014-0012 - VMware vSphere product updates address security vulnerabilities (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- 20130510 [SECURITY] CVE-2012-3544 Chunked transfer encoding extension size is not limited (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- USN-1841-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 64758 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://www.oracle.com/technetwork/topics/security/cpujan2014-1972949.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- [tomcat-dev] 20190319 svn commit: r1855831 [23/30] - in /tomcat/site/trunk: ./ docs/ xdocs/ (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [tomcat-dev] 20190325 svn commit: r1856174 [21/29] - in /tomcat/site/trunk: docs/ xdocs/ xdocs/stylesheets/ (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [tomcat-dev] 20190413 svn commit: r1857494 [15/20] - in /tomcat/site/trunk: ./ docs/ xdocs/ (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [tomcat-dev] 20190415 svn commit: r1857582 [16/22] - in /tomcat/site/trunk: docs/ xdocs/stylesheets/ (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [tomcat-dev] 20200203 svn commit: r1873527 [23/30] - /tomcat/site/trunk/docs/ (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [tomcat-dev] 20200213 svn commit: r1873980 [26/34] - /tomcat/site/trunk/docs/ (opens in a new tab)mailing-listx_refsource_MLISTx_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 Advisory GHSA-qfxv-3ppc-7qg5 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2012-3544)Record last updated .