Use After Free Affecting kernel-rt-kvm package, versions <0:3.10.0-1127.8.2.rt56.1103.el7


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.35% (27th percentile)

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  • Snyk IDSNYK-RHEL7-KERNELRTKVM-1527271
  • published26 Jul 2021
  • disclosed4 Sept 2019

Introduced: 4 Sep 2019

CVE-2017-18595  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:7 kernel-rt-kvm to version 0:3.10.0-1127.8.2.rt56.1103.el7 or higher.
This issue was patched in RHSA-2020:2085.

NVD Description

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

An issue was discovered in the Linux kernel before 4.14.11. A double free may be caused by the function allocate_trace_buffer in the file kernel/trace/trace.c.

CVSS Base Scores

version 3.1