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redhatRedHatRHSA-2022:7137
HistoryOct 25, 2022 - 7:52 a.m.

(RHSA-2022:7137) Important: kpatch-patch security update

2022-10-2507:52:27
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rhsa-2022-7137
use-after-free
privilege escalation
cls_route filter
cvss score
cve-2022-2588
kernel live patch module
rpm post-install script
running kernel
security update

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

21.8%

This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.

Security Fix(es):

  • a use-after-free in cls_route filter implementation may lead to privilege escalation (CVE-2022-2588)

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.

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

21.8%