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redhatRedHatRHSA-2023:0114
HistoryJan 12, 2023 - 8:25 a.m.

(RHSA-2023:0114) Important: kernel-rt security and bug fix update

2023-01-1208:25:42
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kernel-rt real-time security bug-fix usb ethernet i915 gpu tlb flush memory access rhel merge dell emc booting issue

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

EPSS

0

Percentile

12.6%

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: memory corruption in AX88179_178A based USB ethernet device. (CVE-2022-2964)

  • kernel: i915: Incorrect GPU TLB flush can lead to random memory access (CVE-2022-4139)

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):

  • The latest RHEL 8.7.z1 kernel changes need to be merged into the RT source tree to keep source parity between the two kernels. (BZ#2137411)

  • [DELL EMC 8.6-RT BUG] System is not booting into RT Kernel with perc12. (BZ#2139867)

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

EPSS

0

Percentile

12.6%