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redhatRedHatRHSA-2022:8940
HistoryDec 13, 2022 - 9:25 a.m.

(RHSA-2022:8940) Important: kernel security and bug fix update

2022-12-1309:25:14
access.redhat.com
107
rhsa-2022-8940
linux kernel
kvm
openvswitch
s390x
bpftrace

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 packages contain the Linux kernel, the core of any Linux operating system.

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):

  • s390x: bpftrace Could not read symbols from /sys/kernel/debug/tracing/available_filter_functions: No such device (BZ#2134808)
OSVersionArchitecturePackageVersionFilename
RedHat8ppc64lekernel-debug-modules-extra< 4.18.0-193.95.1.el8_2kernel-debug-modules-extra-4.18.0-193.95.1.el8_2.ppc64le.rpm
RedHat8ppc64lepython3-perf< 4.18.0-193.95.1.el8_2python3-perf-4.18.0-193.95.1.el8_2.ppc64le.rpm
RedHat8ppc64lekernel-cross-headers< 4.18.0-193.95.1.el8_2kernel-cross-headers-4.18.0-193.95.1.el8_2.ppc64le.rpm
RedHat8x86_64kernel-devel< 4.18.0-193.95.1.el8_2kernel-devel-4.18.0-193.95.1.el8_2.x86_64.rpm
RedHat8ppc64leperf< 4.18.0-193.95.1.el8_2perf-4.18.0-193.95.1.el8_2.ppc64le.rpm
RedHat8x86_64python3-perf< 4.18.0-193.95.1.el8_2python3-perf-4.18.0-193.95.1.el8_2.x86_64.rpm
RedHat8x86_64kernel-debug-modules-extra< 4.18.0-193.95.1.el8_2kernel-debug-modules-extra-4.18.0-193.95.1.el8_2.x86_64.rpm
RedHat8x86_64kernel-debuginfo< 4.18.0-193.95.1.el8_2kernel-debuginfo-4.18.0-193.95.1.el8_2.x86_64.rpm
RedHat8x86_64kernel-debug-modules< 4.18.0-193.95.1.el8_2kernel-debug-modules-4.18.0-193.95.1.el8_2.x86_64.rpm
RedHat8x86_64python3-perf-debuginfo< 4.18.0-193.95.1.el8_2python3-perf-debuginfo-4.18.0-193.95.1.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

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EPSS

0

Percentile

5.1%

JSON
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