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redhatRedHatRHSA-2023:1092
HistoryMar 07, 2023 - 8:56 a.m.

(RHSA-2023:1092) Important: kernel-rt security and bug fix update

2023-03-0708:56:13
access.redhat.com
27

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

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.3%

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: stack overflow in do_proc_dointvec and proc_skip_spaces (CVE-2022-4378)

  • kernel: use-after-free related to leaf anon_vma double reuse (CVE-2022-42703)

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.z21 source tree (BZ#2159523)
OSVersionArchitecturePackageVersionFilename
RedHat7x86_64kernel-rt-kvm< 3.10.0-1160.88.1.rt56.1233.el7kernel-rt-kvm-3.10.0-1160.88.1.rt56.1233.el7.x86_64.rpm
RedHat7x86_64kernel-rt-trace-kvm< 3.10.0-1160.88.1.rt56.1233.el7kernel-rt-trace-kvm-3.10.0-1160.88.1.rt56.1233.el7.x86_64.rpm
RedHat7x86_64kernel-rt-debug< 3.10.0-1160.88.1.rt56.1233.el7kernel-rt-debug-3.10.0-1160.88.1.rt56.1233.el7.x86_64.rpm
RedHat7x86_64kernel-rt-debug-kvm< 3.10.0-1160.88.1.rt56.1233.el7kernel-rt-debug-kvm-3.10.0-1160.88.1.rt56.1233.el7.x86_64.rpm
RedHat7x86_64kernel-rt-trace< 3.10.0-1160.88.1.rt56.1233.el7kernel-rt-trace-3.10.0-1160.88.1.rt56.1233.el7.x86_64.rpm
RedHat7x86_64kernel-rt-debug-debuginfo< 3.10.0-1160.88.1.rt56.1233.el7kernel-rt-debug-debuginfo-3.10.0-1160.88.1.rt56.1233.el7.x86_64.rpm
RedHat7x86_64kernel-rt< 3.10.0-1160.88.1.rt56.1233.el7kernel-rt-3.10.0-1160.88.1.rt56.1233.el7.x86_64.rpm
RedHat7x86_64kernel-rt-debuginfo< 3.10.0-1160.88.1.rt56.1233.el7kernel-rt-debuginfo-3.10.0-1160.88.1.rt56.1233.el7.x86_64.rpm
RedHat7x86_64kernel-rt-kvm-debuginfo< 3.10.0-1160.88.1.rt56.1233.el7kernel-rt-kvm-debuginfo-3.10.0-1160.88.1.rt56.1233.el7.x86_64.rpm
RedHat7x86_64kernel-rt-trace-debuginfo< 3.10.0-1160.88.1.rt56.1233.el7kernel-rt-trace-debuginfo-3.10.0-1160.88.1.rt56.1233.el7.x86_64.rpm
Rows per page:
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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

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.3%

JSON
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