Description
libssh before 0.7.3 improperly truncates ephemeral secrets generated for the (1) diffie-hellman-group1 and (2) diffie-hellman-group14 key exchange methods to 128 bits, which makes it easier for man-in-the-middle attackers to decrypt or intercept SSH sessions via unspecified vectors, aka a "bits/bytes confusion bug."
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178058.html ↗
- http://www.ubuntu.com/usn/USN-2912-1 ↗
- https://www.libssh.org/security/advisories/CVE-2016-0739.txt ↗
- https://puppet.com/security/cve/CVE-2016-0739 ↗
- http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178822.html ↗
- https://security.gentoo.org/glsa/201606-12 ↗
- http://www.debian.org/security/2016/dsa-3488 ↗
- http://rhn.redhat.com/errata/RHSA-2016-0566.html ↗
- https://www.libssh.org/2016/02/23/libssh-0-7-3-security-and-bugfix-release/ ↗
- http://lists.opensuse.org/opensuse-updates/2016-03/msg00111.html ↗