Out-of-bounds Write Affecting kernel-rt-core package, versions <0:4.18.0-513.18.1.rt7.320.el8_9


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-CENTOS8-KERNELRTCORE-6039066
  • published30 Oct 2023
  • disclosed25 Oct 2023

Introduced: 25 Oct 2023

CVE-2023-5717  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Centos:8 kernel-rt-core to version 0:4.18.0-513.18.1.rt7.320.el8_9 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-core package and not the kernel-rt-core package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf) component can be exploited to achieve local privilege escalation.

If perf_read_group() is called while an event's sibling_list is smaller than its child's sibling_list, it can increment or write to memory locations outside of the allocated buffer.

We recommend upgrading past commit 32671e3799ca2e4590773fd0e63aaa4229e50c06.

CVSS Scores

version 3.1