Out-of-Bounds Affecting kernel-rt-debug-kvm package, versions <0:4.18.0-240.10.1.rt7.64.el8_3


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-RHEL8-KERNELRTDEBUGKVM-3922402
  • published26 Jul 2021
  • disclosed9 Sept 2020

Introduced: 9 Sep 2020

CVE-2020-25211  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade RHEL:8 kernel-rt-debug-kvm to version 0:4.18.0-240.10.1.rt7.64.el8_3 or higher.
This issue was patched in RHSA-2021:0004.

NVD Description

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

In the Linux kernel through 5.8.7, local attackers able to inject conntrack netlink configuration could overflow a local buffer, causing crashes or triggering use of incorrect protocol numbers in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c, aka CID-1cc5ef91d2ff.

CVSS Scores

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