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.
References (5)
Core 5
Core References
Vendor Advisory x_refsource_confirm
http://www.openssh.com/txt/gcmrekey.adv
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00017.html
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2014-1
Mailing List vendor-advisory
x_refsource_hp
http://marc.info/?l=bugtraq&m=141576985122836&w=2
Mailing List mailing-list
x_refsource_mlist
http://openwall.com/lists/oss-security/2013/11/08/3
Scores
EPSS
0.0031
EPSS Percentile
53.9%
Details
CWE
CWE-264
Status
published
Products (2)
openbsd/openssh
6.2
openbsd/openssh
6.3
Published
Nov 08, 2013
Tracked Since
Feb 18, 2026