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redhatRedHatRHSA-2020:3219
HistoryJul 29, 2020 - 5:13 p.m.

(RHSA-2020:3219) Moderate: kernel-rt security and bug fix update

2020-07-2917:13:32
access.redhat.com
88

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

8.2 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

0.001 Low

EPSS

Percentile

30.0%

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: lockdown: bypass through ACPI write via efivar_ssdt (CVE-2019-20908)

  • kernel: lockdown: bypass through ACPI write via acpi_configfs (CVE-2020-15780)

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: provide infrastructure to support dual-signing of the kernel (foundation to help address CVE-2020-10713) (BZ#1837441)

  • kernel-rt: update RT source tree to the RHEL-8.2.z3 source tree (BZ#1856816)

OSVersionArchitecturePackageVersionFilename
RedHat8x86_64kernel-rt-debug< 4.18.0-193.14.3.rt13.67.el8_2kernel-rt-debug-4.18.0-193.14.3.rt13.67.el8_2.x86_64.rpm
RedHat8x86_64kernel-rt-debug-devel< 4.18.0-193.14.3.rt13.67.el8_2kernel-rt-debug-devel-4.18.0-193.14.3.rt13.67.el8_2.x86_64.rpm
RedHat8x86_64kernel-rt-modules-extra< 4.18.0-193.14.3.rt13.67.el8_2kernel-rt-modules-extra-4.18.0-193.14.3.rt13.67.el8_2.x86_64.rpm
RedHat8x86_64kernel-rt-debug-debuginfo< 4.18.0-193.14.3.rt13.67.el8_2kernel-rt-debug-debuginfo-4.18.0-193.14.3.rt13.67.el8_2.x86_64.rpm
RedHat8x86_64kernel-rt-debug-kvm< 4.18.0-193.14.3.rt13.67.el8_2kernel-rt-debug-kvm-4.18.0-193.14.3.rt13.67.el8_2.x86_64.rpm
RedHat8x86_64kernel-rt-debug-modules-extra< 4.18.0-193.14.3.rt13.67.el8_2kernel-rt-debug-modules-extra-4.18.0-193.14.3.rt13.67.el8_2.x86_64.rpm
RedHat8x86_64kernel-rt-debuginfo-common-x86_64< 4.18.0-193.14.3.rt13.67.el8_2kernel-rt-debuginfo-common-x86_64-4.18.0-193.14.3.rt13.67.el8_2.x86_64.rpm
RedHat8x86_64kernel-rt-modules< 4.18.0-193.14.3.rt13.67.el8_2kernel-rt-modules-4.18.0-193.14.3.rt13.67.el8_2.x86_64.rpm
RedHat8x86_64kernel-rt-core< 4.18.0-193.14.3.rt13.67.el8_2kernel-rt-core-4.18.0-193.14.3.rt13.67.el8_2.x86_64.rpm
RedHat8x86_64kernel-rt< 4.18.0-193.14.3.rt13.67.el8_2kernel-rt-4.18.0-193.14.3.rt13.67.el8_2.x86_64.rpm
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7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

8.2 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

0.001 Low

EPSS

Percentile

30.0%

JSON
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