Use After Free Affecting kernel-tools package, versions <0:3.10.0-123.4.2.el7


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.19% (42nd percentile)

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  • Snyk IDSNYK-RHEL7-KERNELTOOLS-4985794
  • published26 Jul 2021
  • disclosed18 Mar 2014

Introduced: 18 Mar 2014

CVE-2014-2568  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:7 kernel-tools 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-tools package and not the kernel-tools package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

Use-after-free vulnerability in the nfqnl_zcopy function in net/netfilter/nfnetlink_queue_core.c in the Linux kernel through 3.13.6 allows attackers to obtain sensitive information from kernel memory by leveraging the absence of a certain orphaning operation. NOTE: the affected code was moved to the skb_zerocopy function in net/core/skbuff.c before the vulnerability was announced.

CVSS Base Scores

version 3.1