Out-of-bounds Write Affecting kernel-rt-debug-devel package, versions <0:4.18.0-240.rt7.54.el8


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.07% (33rd percentile)

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  • Snyk IDSNYK-RHEL8-KERNELRTDEBUGDEVEL-3839994
  • published26 Jul 2021
  • disclosed5 May 2020

Introduced: 5 May 2020

CVE-2020-12659  (opens in a new tab)
CWE-787  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade RHEL:8 kernel-rt-debug-devel to version 0:4.18.0-240.rt7.54.el8 or higher.
This issue was patched in RHSA-2020:4609.

NVD Description

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

An issue was discovered in the Linux kernel before 5.6.7. xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) because of a lack of headroom validation.

CVSS Scores

version 3.1