<p>Upgrade <code>RHEL:7</code> <code>kernel</code> to version 0:3.10.0-123.4.2.el7 or higher.<br>This issue was patched in <code>RHSA-2014:0786</code>.</p>

Out-of-bounds Read Affecting kernel package, versions <0:3.10.0-123.4.2.el7

Threat Intelligence

0.18% (57^th percentile)

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Snyk ID SNYK-RHEL7-KERNEL-5011592
published 26 Jul 2021
disclosed 13 Apr 2014

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Introduced: 13 Apr 2014

CVE-2014-3145 Open this link in a new tab CWE-125 Open this link in a new tab

How to fix?

Upgrade RHEL:7 kernel to version 0:3.10.0-123.4.2.el7 or higher.
This issue was patched in RHSA-2014:0786.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

The BPF_S_ANC_NLATTR_NEST extension implementation in the sk_run_filter function in net/core/filter.c in the Linux kernel through 3.14.3 uses the reverse order in a certain subtraction, which allows local users to cause a denial of service (over-read and system crash) via crafted BPF instructions. NOTE: the affected code was moved to the __skb_get_nlattr_nest function before the vulnerability was announced.

References

CVSS Scores

version 3.1

Attack Vector (AV)

Local
Attack Complexity (AC)

Low
Privileges Required (PR)

None
User Interaction (UI)

None

Scope (S)

Unchanged

Confidentiality (C)

None
Integrity (I)

None
Availability (A)

High