Improper Authentication Affecting openssh-server package, versions <0:7.4p1-11.el7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-RHEL7-OPENSSHSERVER-4690331
- published26 Jul 2021
- disclosed19 Dec 2016
Introduced: 19 Dec 2016
CVE-2016-10012 (opens in a new tab)How to fix?
Upgrade RHEL:7 openssh-server to version 0:7.4p1-11.el7 or higher.
This issue was patched in RHSA-2017:2029.
NVD Description
Note: Versions mentioned in the description apply only to the upstream openssh-server package and not the openssh-server package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
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.
References
- http://www.securityfocus.com/bid/94975
- https://github.com/openbsd/src/commit/3095060f479b86288e31c79ecbc5131a66bcd2f9
- https://security.netapp.com/advisory/ntap-20171130-0002/
- https://support.f5.com/csp/article/K62201745?utm_source=f5support&utm_medium=RSS
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03818en_us
- https://www.openssh.com/txt/release-7.4
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.647637
- https://access.redhat.com/security/cve/CVE-2016-10012
- https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
- http://www.openwall.com/lists/oss-security/2016/12/19/2
- https://access.redhat.com/errata/RHSA-2017:2029
- http://www.securitytracker.com/id/1037490
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- https://support.f5.com/csp/article/K62201745?utm_source=f5support&%3Butm_medium=RSS