Use of Insufficiently Random Values Affecting perf package, versions <0:4.18.0-372.9.1.el8
Threat Intelligence
EPSS
0.05% (20th
percentile)
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Test your applications- Snyk ID SNYK-RHEL8-PERF-4254887
- published 13 Jan 2022
- disclosed 24 Mar 2021
How to fix?
Upgrade RHEL:8 perf 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 perf package and not the perf package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
In the IPv4 implementation in the Linux kernel before 5.12.4, net/ipv4/route.c has an information leak because the hash table is very small.
References
- https://access.redhat.com/security/cve/CVE-2021-45486
- https://arxiv.org/pdf/2112.09604.pdf
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.4
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/net/ipv4/route.c?id=aa6dd211e4b1dde9d5dc25d699d35f789ae7eeba
- https://access.redhat.com/errata/RHSA-2022:1988
- https://www.oracle.com/security-alerts/cpujul2022.html
CVSS Scores
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