USN-2014-1: OpenSSH vulnerability
6
(AV:N/AC:M/Au:S/C:P/I:P/A:P)
11/08/2013
07/25/2018
04/08/2014
07/09/2020
Description
The mm_newkeys_from_blob function in monitor_wrap.c in sshd in OpenSSH 6.2 and 6.3, when an AES-GCM cipher is used, does not properly initialize memory for a MAC context data structure, which allows remote authenticated users to bypass intended ForceCommand and login-shell restrictions via packet data that provides a crafted callback address.
Solution(s)
- ubuntu-upgrade-openssh-server
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