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NULL Pointer Dereference Affecting kernel-rt package, versions <0:3.10.0-693.17.1.rt56.636.el7

Severity

 Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-CENTOS7-KERNELRT-2096732
  • published26 Jul 2021
  • disclosed18 Sept 2017
Report a new vulnerability Found a mistake?

Introduced: 18 Sep 2017

CVE-2017-12192  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Centos:7 kernel-rt to version 0:3.10.0-693.17.1.rt56.636.el7 or higher.

NVD Description

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

The keyctl_read_key function in security/keys/keyctl.c in the Key Management subcomponent in the Linux kernel before 4.13.5 does not properly consider that a key may be possessed but negatively instantiated, which allows local users to cause a denial of service (OOPS and system crash) via a crafted KEYCTL_READ operation.