CVE-2014-0195
MEDIUM severity · CVSS 6.8 · Buffer overflow
6.8CVSS MEDIUM
Summary
The dtls1_reassemble_fragment function in d1_both.c in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h does not properly validate fragment lengths in DTLS ClientHello messages, which allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow and application crash) via a long non-initial fragment.
Impact & exploitability
Attack vectorNetwork
Attack complexity—
Privileges required—
User interaction—
Confidentiality impact—
Integrity impact—
Availability impact—
Exploit probability (EPSS)93%
AV:N/AC:M/Au:N/C:P/I:P/A:P
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://aix.software.ibm.com/aix/efixes/security/openssl_advisory9.ascAdvisory
- http://h30499.www3.hp.com/t5/HP-Security-Research-Blog/Once-Bled-Twice-Shy-OpenSSL-CVE-2014-0195/ba-p/6501048
- http://h30499.www3.hp.com/t5/HP-Security-Research-Blog/ZDI-14-173-CVE-2014-0195-OpenSSL-DTLS-Fragment-Out-of-Bounds/ba-p/6501002
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10629Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136470.htmlAdvisory
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136473.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00016.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.htmlAdvisory