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redhatRedHatRHSA-2022:8941
HistoryDec 13, 2022 - 9:25 a.m.

(RHSA-2022:8941) Important: kernel-rt security and bug fix update

2022-12-1309:25:16
access.redhat.com
42
kernel-rt real time linux kernel systems extremely high determinism kvm openvswitch security bug fix update rhel-8.2.z22 batch.

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

5.1%

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: KVM: cmpxchg_gpte can write to pfns outside the userspace region (CVE-2022-1158)

  • kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size() (CVE-2022-2639)

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 latest RHEL-8.2.z22 Batch (BZ#2138929)
OSVersionArchitecturePackageVersionFilename
RedHat8x86_64kernel-rt< 4.18.0-193.95.1.rt13.146.el8_2kernel-rt-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm
RedHat8x86_64kernel-rt-modules< 4.18.0-193.95.1.rt13.146.el8_2kernel-rt-modules-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm
RedHat8x86_64kernel-rt-modules-extra< 4.18.0-193.95.1.rt13.146.el8_2kernel-rt-modules-extra-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm
RedHat8x86_64kernel-rt-core< 4.18.0-193.95.1.rt13.146.el8_2kernel-rt-core-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm
RedHat8x86_64kernel-rt-devel< 4.18.0-193.95.1.rt13.146.el8_2kernel-rt-devel-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm
RedHat8x86_64kernel-rt-debuginfo-common-x86_64< 4.18.0-193.95.1.rt13.146.el8_2kernel-rt-debuginfo-common-x86_64-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm
RedHat8x86_64kernel-rt-debug-modules-extra< 4.18.0-193.95.1.rt13.146.el8_2kernel-rt-debug-modules-extra-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm
RedHat8x86_64kernel-rt-debug-devel< 4.18.0-193.95.1.rt13.146.el8_2kernel-rt-debug-devel-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm
RedHat8x86_64kernel-rt-debug-kvm< 4.18.0-193.95.1.rt13.146.el8_2kernel-rt-debug-kvm-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm
RedHat8x86_64kernel-rt-kvm< 4.18.0-193.95.1.rt13.146.el8_2kernel-rt-kvm-4.18.0-193.95.1.rt13.146.el8_2.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

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EPSS

0

Percentile

5.1%

JSON
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