Public Date:
1202855: CVE-2015-1805 kernel: pipe: iovec overrun leading to memory corruption
It was found that the Linux kernel's implementation of vectored pipe read and write functionality did not take into account the I/O vectors that were already processed when retrying after a failed atomic access operation, potentially resulting in memory corruption due to an I/O vector array overrun. A local, unprivileged user could use this flaw to crash the system or, potentially, escalate their privileges on the system.

Find out more about CVE-2015-1805 from the MITRE CVE dictionary dictionary and NIST NVD.


This issue does affect the Linux kernel packages as shipped with Red Hat
Enterprise Linux 5, 6, and 7, and Red Hat Enterprise MRG 2. Future Linux
kernel updates for the respective releases will address this issue.

CVSS v2 metrics

Base Score 6.9
Base Metrics AV:L/AC:M/Au:N/C:C/I:C/A:C
Access Vector Local
Access Complexity Medium
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
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 MRG Grid for RHEL 6 Server v.2 (kernel-rt) RHSA-2015:1138 2015-06-23
Red Hat Enterprise Linux Advanced Update Support 6.2 (kernel) RHSA-2015:1082 2015-06-09
Red Hat Enterprise Linux Long Life (v. 5.6 server) (kernel) RHSA-2015:1190 2015-06-25
Red Hat Enterprise Linux 7 (kernel) RHSA-2015:1137 2015-06-23
Red Hat Enterprise Linux Extended Update Support 6.5 (kernel) RHSA-2015:1199 2015-06-30
Red Hat Enterprise Linux Advanced Update Support 6.4 (kernel) RHSA-2015:1211 2015-07-07
Red Hat Enterprise Linux 5 (kernel) RHSA-2015:1042 2015-06-02
Red Hat Enterprise Linux for Real Time for NFV (v. 7) (kernel-rt) RHSA-2015:1139 2015-06-23
Red Hat Enterprise Linux 6 (kernel) RHSA-2015:1081 2015-06-09
Red Hat Enterprise Linux Long Life (v. 5.9 server) (kernel) RHSA-2015:1120 2015-06-16

Affected Packages State

Platform Package State
Red Hat Enterprise MRG 2 kernel Affected
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.


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