Incorrect Authorization Affecting kernel-uek-doc package, versions <0:5.4.17-2102.203.5.el8uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.05% (19th percentile)

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  • Snyk IDSNYK-ORACLE8-KERNELUEKDOC-2600223
  • published10 Apr 2022
  • disclosed6 May 2021

Introduced: 6 May 2021

CVE-2021-31829  (opens in a new tab)
CWE-863  (opens in a new tab)

How to fix?

Upgrade Oracle:8 kernel-uek-doc to version 0:5.4.17-2102.203.5.el8uek or higher.
This issue was patched in ELSA-2021-9362.

NVD Description

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

kernel/bpf/verifier.c in the Linux kernel through 5.12.1 performs undesirable speculative loads, leading to disclosure of stack content via side-channel attacks, aka CID-801c6058d14a. The specific concern is not protecting the BPF stack area against speculative loads. Also, the BPF stack can contain uninitialized data that might represent sensitive information previously operated on by the kernel.

CVSS Scores

version 3.1