CVE-2014-0195

Published: 05 June 2014

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.

Priority

Medium

Status

Package Release Status
openssl
Launchpad, Ubuntu, Debian
Upstream
Released (1.0.1h)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (1.0.1f-1ubuntu2.2)
Ubuntu 12.04 ESM (Precise Pangolin)
Released (1.0.1-4ubuntu5.14)
openssl098
Launchpad, Ubuntu, Debian
Upstream
Released (0.9.8za)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was released [0.9.8o-7ubuntu3.2.14.04.1])
Ubuntu 12.04 ESM (Precise Pangolin)
Released (0.9.8o-7ubuntu3.2)

Notes

AuthorNote
mdeslaur code in lucid is different, doesn't look vulnerable as it just discards multiple fragments. See: https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=c713a4c04d096fca04c42a95dddec235d9390136 and http://rt.openssl.org/Ticket/Display.html?id=2230

References