Improper Input Validation Affecting perf package, versions <0:4.18.0-305.17.1.el8_4
Threat Intelligence
EPSS
0.38% (74th
percentile)
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Test your applications- Snyk ID SNYK-RHEL8-PERF-4094636
- published 17 Aug 2021
- disclosed 13 Jun 2021
How to fix?
Upgrade RHEL:8 perf to version 0:4.18.0-305.17.1.el8_4 or higher.
This issue was patched in RHSA-2021:3447.
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.
net/sunrpc/xdr.c in the Linux kernel before 5.13.4 allows remote attackers to cause a denial of service (xdr_set_page_base slab-out-of-bounds access) by performing many NFS 4.2 READ_PLUS operations.
References
- https://security.netapp.com/advisory/ntap-20210902-0010/
- https://access.redhat.com/security/cve/CVE-2021-38201
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4
- https://github.com/torvalds/linux/commit/6d1c0f3d28f98ea2736128ed3e46821496dc3a8c
- https://access.redhat.com/errata/RHSA-2021:3447
CVSS Scores
version 3.1