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redhatRedHatRHSA-2022:5344
HistoryJun 28, 2022 - 10:55 a.m.

(RHSA-2022:5344) Important: kernel-rt security and bug fix update

2022-06-2810:55:48
access.redhat.com
29
real time linux kernel
security update
buffer overflow
out-of-bounds read
ipsec
fbcon
cve-2022-27666
cve-2020-28915
rhel-8.6.z0 batch

CVSS2

6.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

COMPLETE

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

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

  • kernel: out-of-bounds read in fbcon_get_font function (CVE-2020-28915)

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-8.6.z0 Batch (BZ#2081704)
OSVersionArchitecturePackageVersionFilename
RedHat8x86_64kernel-rt-modules< 4.18.0-372.13.1.rt7.170.el8_6kernel-rt-modules-4.18.0-372.13.1.rt7.170.el8_6.x86_64.rpm
RedHat8x86_64kernel-rt-modules-extra< 4.18.0-372.13.1.rt7.170.el8_6kernel-rt-modules-extra-4.18.0-372.13.1.rt7.170.el8_6.x86_64.rpm
RedHat8x86_64kernel-rt-debug-debuginfo< 4.18.0-372.13.1.rt7.170.el8_6kernel-rt-debug-debuginfo-4.18.0-372.13.1.rt7.170.el8_6.x86_64.rpm
RedHat8x86_64kernel-rt-debug-kvm< 4.18.0-372.13.1.rt7.170.el8_6kernel-rt-debug-kvm-4.18.0-372.13.1.rt7.170.el8_6.x86_64.rpm
RedHat8x86_64kernel-rt< 4.18.0-372.13.1.rt7.170.el8_6kernel-rt-4.18.0-372.13.1.rt7.170.el8_6.x86_64.rpm
RedHat8x86_64kernel-rt-core< 4.18.0-372.13.1.rt7.170.el8_6kernel-rt-core-4.18.0-372.13.1.rt7.170.el8_6.x86_64.rpm
RedHat8x86_64kernel-rt-debug-modules-extra< 4.18.0-372.13.1.rt7.170.el8_6kernel-rt-debug-modules-extra-4.18.0-372.13.1.rt7.170.el8_6.x86_64.rpm
RedHat8x86_64kernel-rt-debug< 4.18.0-372.13.1.rt7.170.el8_6kernel-rt-debug-4.18.0-372.13.1.rt7.170.el8_6.x86_64.rpm
RedHat8x86_64kernel-rt-debuginfo-common-x86_64< 4.18.0-372.13.1.rt7.170.el8_6kernel-rt-debuginfo-common-x86_64-4.18.0-372.13.1.rt7.170.el8_6.x86_64.rpm
RedHat8x86_64kernel-rt-debug-devel< 4.18.0-372.13.1.rt7.170.el8_6kernel-rt-debug-devel-4.18.0-372.13.1.rt7.170.el8_6.x86_64.rpm
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CVSS2

6.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

COMPLETE

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

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
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