Out-of-Bounds Affecting kernel-rt-selftests-internal package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-CENTOS8-KERNELRTSELFTESTSINTERNAL-1963175
  • published26 Jul 2021
  • disclosed21 Jun 2021

Introduced: 21 Jun 2021

CVE-2021-33624  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

There is no fixed version for Centos:8 kernel-rt-selftests-internal.

NVD Description

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

In kernel/bpf/verifier.c in the Linux kernel before 5.12.13, a branch can be mispredicted (e.g., because of type confusion) and consequently an unprivileged BPF program can read arbitrary memory locations via a side-channel attack, aka CID-9183671af6db.

CVSS Scores

version 3.1