CVE-2016-0774

Impact:
Moderate
Public Date:
2016-02-02
Bugzilla:
1303961: CVE-2016-0774 kernel: pipe buffer state corruption after unsuccessful atomic read from pipe
It was found that the fix for CVE-2015-1805 incorrectly kept buffer offset and buffer length in sync on a failed atomic read, potentially resulting in a pipe buffer state corruption. A local, unprivileged user could use this flaw to crash the system or leak kernel memory to user space.

Find out more about CVE-2016-0774 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

Base Score 5.4
Base Metrics AV:L/AC:M/Au:N/C:P/I:N/A:C
Access Vector Local
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact Complete

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 Extended Update Support 7.1 (kernel) RHSA-2016:0103 2016-02-02
Red Hat Enterprise Linux Extended Update Support 6.6 (kernel) RHSA-2016:0617 2016-04-12
Red Hat Enterprise Linux 6 (kernel) RHSA-2016:0494 2016-03-22
Red Hat Enterprise Linux 7 (kernel) RHSA-2015:2152 2015-11-19

Affected Packages State

Platform Package State
Red Hat Enterprise MRG 2 kernel Not affected
Red Hat Enterprise Linux 7 kernel-rt Not affected
Red Hat Enterprise Linux 5 kernel Will not fix
Unless explicitly stated as not affected, all previous versions of packages in any minor update stream of a product listed here should be assumed vulnerable, although may not have been subject to full analysis.

Acknowledgements

The security impact of this issue was discovered by Red Hat.
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