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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
19

7.8 High

CVSS3

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

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:S/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

5.3%

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-debug-modules< 4.18.0-193.95.1.rt13.146.el8_2kernel-rt-debug-modules-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-debuginfo< 4.18.0-193.95.1.rt13.146.el8_2kernel-rt-debuginfo-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-debug< 4.18.0-193.95.1.rt13.146.el8_2kernel-rt-debug-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-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-core< 4.18.0-193.95.1.rt13.146.el8_2kernel-rt-debug-core-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< 4.18.0-193.95.1.rt13.146.el8_2kernel-rt-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm
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7.8 High

CVSS3

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

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:S/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

5.3%

JSON
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