CVE-2013-4548

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6 UNKNOWN
NETWORK
MEDIUM
AV:N/AC:M/Au:S/C:P/I:P/A:P
redhatCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 52%
VendorProductVersion
openbsdopenssh
6.2
openbsdopenssh
6.3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
openssh
bullseye (security)
1:8.4p1-5+deb11u3
fixed
bullseye
1:8.4p1-5+deb11u3
fixed
wheezy
not-affected
squeeze
not-affected
bookworm
1:9.2p1-2+deb12u3
fixed
bookworm (security)
1:9.2p1-2+deb12u3
fixed
sid
1:9.9p1-3
fixed
trixie
1:9.9p1-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
openssh
saucy
Fixed 1:6.2p2-6ubuntu0.1
released
raring
not-affected
quantal
not-affected
precise
not-affected
lucid
not-affected
Common Weakness Enumeration
References
http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00017.html
http://marc.info/?l=bugtraq&m=141576985122836&w=2
http://marc.info/?l=bugtraq&m=141576985122836&w=2
http://openwall.com/lists/oss-security/2013/11/08/3
http://www.openssh.com/txt/gcmrekey.adv
http://www.ubuntu.com/usn/USN-2014-1
http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00017.html
http://marc.info/?l=bugtraq&m=141576985122836&w=2
http://marc.info/?l=bugtraq&m=141576985122836&w=2
http://openwall.com/lists/oss-security/2013/11/08/3
http://www.openssh.com/txt/gcmrekey.adv
http://www.ubuntu.com/usn/USN-2014-1