Use of a Broken or Risky Cryptographic Algorithm Affecting kernel package, versions <0:4.18.0-372.9.1.el8


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.13% (49th percentile)

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  • Snyk IDSNYK-RHEL8-KERNEL-4260966
  • published13 Jan 2022
  • disclosed31 May 2021

Introduced: 31 May 2021

CVE-2021-45485  (opens in a new tab)
CWE-327  (opens in a new tab)

How to fix?

Upgrade RHEL:8 kernel to version 0:4.18.0-372.9.1.el8 or higher.
This issue was patched in RHSA-2022:1988.

NVD Description

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

In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses.

CVSS Scores

version 3.1