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redhatRedHatRHSA-2022:7319
HistoryNov 02, 2022 - 1:52 p.m.

(RHSA-2022:7319) Important: kernel-rt security and bug fix update

2022-11-0213:52:24
access.redhat.com
16
kernel-rt
security fix
bug fix
determinism requirements
local privilege escalation
unprivileged users
ptrace_seize
ptrace_o_suspend_seccomp
cvss score
rhel-9.0.z4 batch

CVSS2

4.4

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

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

0.001

Percentile

44.2%

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):

  • posix cpu timer use-after-free may lead to local privilege escalation (CVE-2022-2585)

  • Unprivileged users may use PTRACE_SEIZE to set PTRACE_O_SUSPEND_SECCOMP option (CVE-2022-30594)

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):

  • Update RT source tree to the latest RHEL-9.0.z4 Batch (BZ#2123498)
OSVersionArchitecturePackageVersionFilename
RedHat9x86_64kernel-rt-debuginfo< 5.14.0-70.30.1.rt21.102.el9_0kernel-rt-debuginfo-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm
RedHat9x86_64kernel-rt-core< 5.14.0-70.30.1.rt21.102.el9_0kernel-rt-core-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm
RedHat9x86_64kernel-rt-debug-kvm< 5.14.0-70.30.1.rt21.102.el9_0kernel-rt-debug-kvm-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm
RedHat9x86_64kernel-rt-debug< 5.14.0-70.30.1.rt21.102.el9_0kernel-rt-debug-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm
RedHat9x86_64kernel-rt-debug-modules< 5.14.0-70.30.1.rt21.102.el9_0kernel-rt-debug-modules-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm
RedHat9x86_64kernel-rt< 5.14.0-70.30.1.rt21.102.el9_0kernel-rt-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm
RedHat9x86_64kernel-rt-devel< 5.14.0-70.30.1.rt21.102.el9_0kernel-rt-devel-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm
RedHat9x86_64kernel-rt-debug-core< 5.14.0-70.30.1.rt21.102.el9_0kernel-rt-debug-core-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm
RedHat9x86_64kernel-rt-debug-modules-extra< 5.14.0-70.30.1.rt21.102.el9_0kernel-rt-debug-modules-extra-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm
RedHat9x86_64kernel-rt-modules< 5.14.0-70.30.1.rt21.102.el9_0kernel-rt-modules-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm
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CVSS2

4.4

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

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

0.001

Percentile

44.2%

JSON
Related for RHSA-2022:7319
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