CVE-2013-6449
Status: ModifiedMedium (4.3)—
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.
CVSS
- Version: 2.0
- Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
- Base score: 4.3
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 21%
- Percentile among all scored CVEs: 98
- Score date: 10/7/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (1)
CWEs
- CWE-310
References
- http://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=ca989269a2876bae79393bd54c3e72d49975fc75
- http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124833.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124854.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124858.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136470.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136473.html
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00006.html
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00009.html
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00012.html
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00031.html
- http://rhn.redhat.com/errata/RHSA-2014-0015.html
- http://rhn.redhat.com/errata/RHSA-2014-0041.html
- http://rt.openssl.org/Ticket/Display.html?id=3200&user=guest&pass=guest
- http://seclists.org/fulldisclosure/2014/Dec/23
- http://security.gentoo.org/glsa/glsa-201412-39.xml
- http://www-01.ibm.com/support/docview.wss?uid=isg400001841
- http://www-01.ibm.com/support/docview.wss?uid=isg400001843
- http://www.debian.org/security/2014/dsa-2833
- http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
- http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
- http://www.securityfocus.com/archive/1/534161/100/0/threaded
- http://www.securityfocus.com/bid/64530
- http://www.securitytracker.com/id/1029548
- http://www.ubuntu.com/usn/USN-2079-1
- http://www.vmware.com/security/advisories/VMSA-2014-0012.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1045363
- https://issues.apache.org/jira/browse/TS-2355
- http://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=ca989269a2876bae79393bd54c3e72d49975fc75
- http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124833.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124854.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124858.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136470.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136473.html
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00006.html
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00009.html
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00012.html
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00031.html
- http://rhn.redhat.com/errata/RHSA-2014-0015.html
- http://rhn.redhat.com/errata/RHSA-2014-0041.html
- http://rt.openssl.org/Ticket/Display.html?id=3200&user=guest&pass=guest
- http://seclists.org/fulldisclosure/2014/Dec/23
- http://security.gentoo.org/glsa/glsa-201412-39.xml
- http://www-01.ibm.com/support/docview.wss?uid=isg400001841
- http://www-01.ibm.com/support/docview.wss?uid=isg400001843
- http://www.debian.org/security/2014/dsa-2833
- http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
- http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
- http://www.securityfocus.com/archive/1/534161/100/0/threaded
- http://www.securityfocus.com/bid/64530
- http://www.securitytracker.com/id/1029548
- http://www.ubuntu.com/usn/USN-2079-1
- http://www.vmware.com/security/advisories/VMSA-2014-0012.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1045363
- https://issues.apache.org/jira/browse/TS-2355
Raw JSON (NVD)
Show
{
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"cveTags": [],
"metrics": {
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"authentication": "NONE",
"integrityImpact": "NONE",
"accessComplexity": "MEDIUM",
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"value": "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."
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}
],
"lastModified": "2026-06-17T00:00:30.820",
"configurations": [
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