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osvGoogleOSV:ALSA-2023:3708
HistoryJun 21, 2023 - 12:00 a.m.

Important: kernel-rt security and bug fix update

2023-06-2100:00:00
Google
osv.dev
20
kernel-rt
security fix
bug fix
perf_group_detach
nf_tables
bluetooth
xfs subsystem
i2c
tls
openshift cluster
almalinux

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

8

Confidence

High

EPSS

0

Percentile

10.3%

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 vulnerability in the perf_group_detach function of the Linux Kernel Performance Events (CVE-2023-2235)
  • kernel: netfilter: use-after-free in nf_tables when processing batch requests can lead to privilege escalation (CVE-2023-32233)
  • Kernel: bluetooth: Unauthorized management command execution (CVE-2023-2002)
  • kernel: OOB access in the Linux kernel’s XFS subsystem (CVE-2023-2124)
  • kernel: i2c: out-of-bounds write in xgene_slimpro_i2c_xfer() (CVE-2023-2194)
  • kernel: tls: race condition in do_tls_getsockopt may lead to use-after-free or NULL pointer dereference (CVE-2023-28466)

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):

  • [RT] Single Node Openshift cluster becomes unreachable after running less than 2 hours (BZ#2186853)
  • kernel-rt: update RT source tree to the latest AlmaLinux-9.2.z1 Batch (BZ#2188313)

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

8

Confidence

High

EPSS

0

Percentile

10.3%