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redhatRedHatRHSA-2023:4821
HistoryAug 29, 2023 - 7:37 a.m.

(RHSA-2023:4821) Important: kernel-rt security and bug fix update

2023-08-2907:37:38
access.redhat.com
10
kernel-rt
security
bug fix
high determinism
cve-2023-35788
cve-2023-20593
rhel7.9.z25

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

0.001 Low

EPSS

Percentile

23.7%

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: cls_flower: out-of-bounds write in fl_set_geneve_opt() (CVE-2023-35788)

  • hw: amd: Cross-Process Information Leak (CVE-2023-20593)

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 to the latest RHEL7.9.z25 source tree (BZ#2221821)
OSVersionArchitecturePackageVersionFilename
RedHat7x86_64kernel-rt-trace-devel< 3.10.0-1160.99.1.rt56.1245.el7kernel-rt-trace-devel-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm
RedHat7noarchkernel-rt-doc< 3.10.0-1160.99.1.rt56.1245.el7kernel-rt-doc-3.10.0-1160.99.1.rt56.1245.el7.noarch.rpm
RedHat7x86_64kernel-rt-trace-debuginfo< 3.10.0-1160.99.1.rt56.1245.el7kernel-rt-trace-debuginfo-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm
RedHat7x86_64kernel-rt-trace< 3.10.0-1160.99.1.rt56.1245.el7kernel-rt-trace-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm
RedHat7x86_64kernel-rt-debuginfo-common-x86_64< 3.10.0-1160.99.1.rt56.1245.el7kernel-rt-debuginfo-common-x86_64-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm
RedHat7x86_64kernel-rt-devel< 3.10.0-1160.99.1.rt56.1245.el7kernel-rt-devel-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm
RedHat7x86_64kernel-rt-trace-kvm< 3.10.0-1160.99.1.rt56.1245.el7kernel-rt-trace-kvm-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm
RedHat7x86_64kernel-rt-trace-kvm-debuginfo< 3.10.0-1160.99.1.rt56.1245.el7kernel-rt-trace-kvm-debuginfo-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm
RedHat7x86_64kernel-rt-debug-kvm< 3.10.0-1160.99.1.rt56.1245.el7kernel-rt-debug-kvm-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm
RedHat7x86_64kernel-rt-debug-kvm-debuginfo< 3.10.0-1160.99.1.rt56.1245.el7kernel-rt-debug-kvm-debuginfo-3.10.0-1160.99.1.rt56.1245.el7.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

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0.001 Low

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Percentile

23.7%

JSON
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