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redhatRedHatRHSA-2022:6983
HistoryOct 18, 2022 - 7:38 a.m.

(RHSA-2022:6983) Important: kernel security, bug fix, and enhancement update

2022-10-1807:38:45
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22

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

38.6%

The kernel packages contain the Linux kernel, the core of any Linux operating system.

The following packages have been upgraded to a later upstream version: kernel (4.18.0).

Security Fix(es):

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

  • Information leak in the IPv6 implementation (CVE-2021-45485)

  • Information leak in the IPv4 implementation (CVE-2021-45486)

  • Incomplete cleanup of multi-core shared buffers (aka SBDR) (CVE-2022-21123)

  • Incomplete cleanup of microarchitectural fill buffers (aka SBDS) (CVE-2022-21125)

  • Incomplete cleanup in specific special register write operations (aka DRPW) (CVE-2022-21166)

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):

  • DR, Ignore modify TTL if ConnectX-5 doesn’t support it (BZ#2075549)

  • execve exit tracepoint not called (BZ#2106663)

  • Unable to boot RHEL-8.6 on Brazos max. config (Install is success) (BZ#2107475)

  • “vmcore failed, _exitcode:139” error observed while capturing vmcore during fadump after memory remove. incomplete vmcore is captured. (BZ#2107490)

  • soft lockups under heavy I/O load to ahci connected SSDs (BZ#2110773)

  • Allow substituting custom vmlinux.h for the build (BZ#2116407)

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

38.6%