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

Severity

 Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.18% (57th percentile)

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  • Snyk ID SNYK-RHEL7-KERNELDEBUGDEVEL-4479489
  • published 26 Jul 2021
  • disclosed 13 Apr 2014
Report a new vulnerability Found a mistake?

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-debug-devel 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-debug-devel package and not the kernel-debug-devel 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
Expand this section

NVD

6.2 medium
  • 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
Expand this section

Red Hat

6.1 medium