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CVE-2013-6449
The ssl_get_algorithm2 function in ssl/s3_lib.c in OpenSSL before 1.0.2 obtains a certain version number from an incorrect data structure,…
- 4.3MediumCVSS base score
- 21.2%Exploitation in 30 daysEPSS · top 2.4% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The ssl_get_algorithm2 function in ssl/s3_lib.c in OpenSSL before 1.0.2 obtains a certain version number from an incorrect data structure, which allows remote attackers to cause a denial of service (daemon crash) via crafted traffic from a TLS 1.2 client.
Timeline
ID reserved
By redhat
- 49 days later
· 49 days later
Published
- 11 years later
· 11 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 | Medium4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 21.2% · top 2.4% of all CVEs (10 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.
Affected products
n/a
- affected n/a
References
27
- http://www.vmware.com/security/advisories/VMSA-2014-0012.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2014:0012 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://www-01.ibm.com/support/docview.wss?uid=isg400001843 (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2014:0018 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- GLSA-201412-39 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- DSA-2833 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 20141205 NEW: VMSA-2014-0012 - VMware vSphere product updates address security vulnerabilities (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- FEDORA-2014-9308 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://www-01.ibm.com/support/docview.wss?uid=isg400001841 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 64530 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2014:0015 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2014:0048 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- USN-2079-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- FEDORA-2013-23768 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://rt.openssl.org/Ticket/Display.html?id=3200&user=guest&pass=guest (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2013-23788 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2014:0015 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 20141205 NEW: VMSA-2014-0012 - VMware vSphere product updates address security vulnerabilities (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- https://issues.apache.org/jira/browse/TS-2355 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1029548 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- FEDORA-2014-9301 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2013-23794 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=ca989269a2876bae79393bd54c3e72d49975fc75 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1045363 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2014:0041 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_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)
- EUVD EUVD-2013-6256 (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://cveledger.app/cve/CVE-2013-6449)Record last updated .