CVE-2016-10012
Published: 4 January 2017
The shared memory manager (associated with pre-authentication compression) in sshd in OpenSSH before 7.4 does not ensure that a bounds check is enforced by all compilers, which might allows local users to gain privileges by leveraging access to a sandboxed privilege-separation process, related to the m_zback and m_zlib data structures.
Priority
CVSS 3 base score: 7.8
Status
Package | Release | Status |
---|---|---|
openssh Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(1:7.4p1-1)
|
bionic |
Not vulnerable
(1:7.4p1-1)
|
|
cosmic |
Not vulnerable
(1:7.4p1-1)
|
|
disco |
Not vulnerable
(1:7.4p1-1)
|
|
eoan |
Not vulnerable
(1:7.4p1-1)
|
|
focal |
Not vulnerable
(1:7.4p1-1)
|
|
groovy |
Not vulnerable
(1:7.4p1-1)
|
|
hirsute |
Not vulnerable
(1:7.4p1-1)
|
|
precise |
Ignored
(end of ESM support, was needed)
|
|
trusty |
Released
(1:6.6p1-2ubuntu2.10)
|
|
upstream |
Released
(1:7.4p1-1)
|
|
xenial |
Released
(1:7.2p2-4ubuntu2.4)
|
|
yakkety |
Ignored
(reached end-of-life)
|
|
zesty |
Not vulnerable
(1:7.4p1-1)
|
Notes
Author | Note |
---|---|
ratliff | Mitigating circumstances noted in the release notes: This could potentially allow attacks against the privileged monitor process from the sandboxed privilege-separation process (a compromise of the latter would be required first). also "pre-auth compression has been disabled by default in sshd for >10 years." |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10012
- https://www.openssh.com/txt/release-7.4
- http://www.openwall.com/lists/oss-security/2016/12/19/2
- https://ubuntu.com/security/notices/USN-3538-1
- NVD
- Launchpad
- Debian