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redhatRedHatRHSA-2023:0531
HistoryJan 30, 2023 - 2:08 p.m.

(RHSA-2023:0531) Important: kernel-rt security and bug fix update

2023-01-3014:08:07
access.redhat.com
16
real time linux
memory corruption
gpu tlb flush
cve-2022-2964
cve-2022-4139
rhel-8.4.z14

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%

JSON

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):

  • kernel-rt: update RT source tree to the RHEL-8.4.z14 source tree. (BZ#2151921)
OSVersionArchitecturePackageVersionFilename
RedHat8x86_64kernel-rt-debug-modules< 4.18.0-305.76.1.rt7.148.el8_4kernel-rt-debug-modules-4.18.0-305.76.1.rt7.148.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-debuginfo< 4.18.0-305.76.1.rt7.148.el8_4kernel-rt-debuginfo-4.18.0-305.76.1.rt7.148.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-debug-core< 4.18.0-305.76.1.rt7.148.el8_4kernel-rt-debug-core-4.18.0-305.76.1.rt7.148.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-debug-debuginfo< 4.18.0-305.76.1.rt7.148.el8_4kernel-rt-debug-debuginfo-4.18.0-305.76.1.rt7.148.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-modules-extra< 4.18.0-305.76.1.rt7.148.el8_4kernel-rt-modules-extra-4.18.0-305.76.1.rt7.148.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt< 4.18.0-305.76.1.rt7.148.el8_4kernel-rt-4.18.0-305.76.1.rt7.148.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-debug-modules-extra< 4.18.0-305.76.1.rt7.148.el8_4kernel-rt-debug-modules-extra-4.18.0-305.76.1.rt7.148.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-debuginfo-common-x86_64< 4.18.0-305.76.1.rt7.148.el8_4kernel-rt-debuginfo-common-x86_64-4.18.0-305.76.1.rt7.148.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-core< 4.18.0-305.76.1.rt7.148.el8_4kernel-rt-core-4.18.0-305.76.1.rt7.148.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-kvm< 4.18.0-305.76.1.rt7.148.el8_4kernel-rt-kvm-4.18.0-305.76.1.rt7.148.el8_4.x86_64.rpm
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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%

JSON
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