CVE-2013-4353
The ssl3_take_mac function in ssl/s3_both.c in OpenSSL 1.0.1 before 1.0.1f allows remote TLS servers to cause a denial of service (NULL pointer dereference and application crash) via a crafted Next Protocol Negotiation record in a TLS handshake.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 11.9%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
Description
The ssl3_take_mac function in ssl/s3_both.c in OpenSSL 1.0.1 before 1.0.1f allows remote TLS servers to cause a denial of service (NULL pointer dereference and application crash) via a crafted Next Protocol Negotiation record in a TLS handshake.
- CVSS 2.0
- 4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
- EPSS
- 11.85% probability · 96th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- openssl/openssl
- Source
- secalert@redhat.com
EPSS 11.9% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://git.openssl.org/gitweb/?p=openssl.git%3Ba=blob_plain%3Bf=CHANGES%3Bhb=refs/heads/OpenSSL_1_0_1-stable
- http://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=197e0ea817ad64820789d86711d55ff50d71f631
- 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/msg00065.html
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00067.html
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00070.html
- http://rhn.redhat.com/errata/RHSA-2014-0015.html
- http://rhn.redhat.com/errata/RHSA-2014-0041.html
- 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-2837
- http://www.openssl.org/news/vulnerabilities.htmlVendor Advisory
- http://www.splunk.com/view/SP-CAAAMB3
- http://www.ubuntu.com/usn/USN-2079-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1049058
- http://git.openssl.org/gitweb/?p=openssl.git%3Ba=blob_plain%3Bf=CHANGES%3Bhb=refs/heads/OpenSSL_1_0_1-stable
- http://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=197e0ea817ad64820789d86711d55ff50d71f631
- 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/msg00065.html
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00067.html
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00070.html
- http://rhn.redhat.com/errata/RHSA-2014-0015.html
- http://rhn.redhat.com/errata/RHSA-2014-0041.html
- 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-2837
- http://www.openssl.org/news/vulnerabilities.htmlVendor Advisory
- http://www.splunk.com/view/SP-CAAAMB3
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.