Use After Free Affecting kernel-debug package, versions <0:2.6.32-696.20.1.el6


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
3.63% (89th percentile)

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  • Snyk IDSNYK-CENTOS6-KERNELDEBUG-2149403
  • published26 Jul 2021
  • disclosed9 Jul 2017

Introduced: 9 Jul 2017

CVE-2017-11176  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Centos:6 kernel-debug to version 0:2.6.32-696.20.1.el6 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug package and not the kernel-debug package as distributed by Centos. See How to fix? for Centos:6 relevant fixed versions and status.

The mq_notify function in the Linux kernel through 4.11.9 does not set the sock pointer to NULL upon entry into the retry logic. During a user-space close of a Netlink socket, it allows attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact.

CVSS Base Scores

version 3.1