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redhatRedHatRHSA-2022:4835
HistoryMay 31, 2022 - 10:00 a.m.

(RHSA-2022:4835) Important: kernel-rt security and bug fix update

2022-05-3110:00:31
access.redhat.com
38

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

5.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

0.003 Low

EPSS

Percentile

67.6%

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: new DNS Cache Poisoning Attack based on ICMP fragment needed packets replies (CVE-2021-20322)

  • kernel: security regression for CVE-2018-13405 (CVE-2021-4037)

  • kernel: buffer overflow in IPsec ESP transformation code (CVE-2022-27666)

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.z9 source tree (BZ#2075148)
OSVersionArchitecturePackageVersionFilename
RedHat8x86_64kernel-rt-kvm< 4.18.0-305.49.1.rt7.121.el8_4kernel-rt-kvm-4.18.0-305.49.1.rt7.121.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-modules< 4.18.0-305.49.1.rt7.121.el8_4kernel-rt-modules-4.18.0-305.49.1.rt7.121.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-debug-devel< 4.18.0-305.49.1.rt7.121.el8_4kernel-rt-debug-devel-4.18.0-305.49.1.rt7.121.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-modules-extra< 4.18.0-305.49.1.rt7.121.el8_4kernel-rt-modules-extra-4.18.0-305.49.1.rt7.121.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-debug< 4.18.0-305.49.1.rt7.121.el8_4kernel-rt-debug-4.18.0-305.49.1.rt7.121.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-debuginfo-common-x86_64< 4.18.0-305.49.1.rt7.121.el8_4kernel-rt-debuginfo-common-x86_64-4.18.0-305.49.1.rt7.121.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt< 4.18.0-305.49.1.rt7.121.el8_4kernel-rt-4.18.0-305.49.1.rt7.121.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-debug-debuginfo< 4.18.0-305.49.1.rt7.121.el8_4kernel-rt-debug-debuginfo-4.18.0-305.49.1.rt7.121.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-debug-modules-extra< 4.18.0-305.49.1.rt7.121.el8_4kernel-rt-debug-modules-extra-4.18.0-305.49.1.rt7.121.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-debug-core< 4.18.0-305.49.1.rt7.121.el8_4kernel-rt-debug-core-4.18.0-305.49.1.rt7.121.el8_4.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

5.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

0.003 Low

EPSS

Percentile

67.6%

JSON
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