Public Date:
1406293: CVE-2016-10012 openssh: Bounds check can be evaded in the shared memory manager used by pre-authentication compression support
It was found that the boundary checks in the code implementing support for pre-authentication compression could have been optimized out by certain compilers. An attacker able to compromise the privilege-separated process could possibly use this flaw for further attacks against the privileged monitor process.

Find out more about CVE-2016-10012 from the MITRE CVE dictionary dictionary and NIST NVD.


In order to exploit this flaw, the attacker needs to first compromise the sandboxed privilege-separation process by using another security flaw. Because of this restriction for successful exploitation, this issue has been rated as having Low security impact. A future update to Red Hat Enterprise Linux 7 will address this flaw.

CVSS v2 metrics

Base Score 3.6
Base Metrics AV:N/AC:H/Au:S/C:P/I:P/A:N
Access Vector Network
Access Complexity High
Authentication Single
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact None

CVSS v3 metrics

CVSS3 Base Score 4.2
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Impact Low
Availability Impact None

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 7 (openssh) RHSA-2017:2029 2017-08-01

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 6 openssh Will not fix
Red Hat Enterprise Linux 5 openssh Will not fix
Red Hat Enterprise Linux 4 openssh Will not fix

External References

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