RLSA-2021:4088

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Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2021:4088.json
JSON Data
https://api.osv.dev/v1/vulns/RLSA-2021:4088
Related
Published
2021-11-02T09:33:51Z
Modified
2023-02-02T14:11:07.843276Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
Important: kernel-rt security and bug fix update
Details

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

  • kernel: use-after-free in drivers/infiniband/core/ucma.c ctx use-after-free (CVE-2020-36385)

  • kernel: out-of-bounds write due to a heap buffer overflow in _hidinputchangeresolutionmultipliers() of hid-input.c (CVE-2021-0512)

  • kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE) (CVE-2021-3656)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

  • kernel-rt: update RT source tree to the Rocky Linux-8.4.z source tree (BZ#2004117)
References
Credits
    • Rocky Enterprise Software Foundation
    • Red Hat

Affected packages

Rocky Linux:8 / kernel-rt

Package

Name
kernel-rt
Purl
pkg:rpm/rocky-linux/kernel-rt?distro=rocky-linux-8-4-legacy&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-305.25.1.rt7.97.el8_4