RLSA-2021:5241

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Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2021:5241.json
JSON Data
https://api.osv.dev/v1/vulns/RLSA-2021:5241
Related
Published
2021-12-21T09:12:29Z
Modified
2023-02-02T14:12:29.664520Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Moderate: 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: In Overlayfs missing a check for a negative dentry before calling vfs_rename() (CVE-2021-20321)

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-8.5.z1 source tree (BZ#2023988)

  • [rt] Rocky Linux-8.6: disable KASAN, KCSAN and UBSAN for kernel-rt (BZ#2026384)

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-8-5-legacy&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-348.7.1.rt7.137.el8_5