Lucene search

K
rockyRockylinux Product ErrataRLSA-2021:5227
HistoryDec 21, 2021 - 9:07 a.m.

kernel security and bug fix update

2021-12-2109:07:34
Rockylinux Product Errata
errata.rockylinux.org
10

4.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

4.7 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.0004 Low

EPSS

Percentile

5.3%

An update is available for kernel.
This update affects Rocky Linux 8.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list
The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

  • kernel: In Overlayfs missing a check for a negative dentry before calling vfs_rename() (CVE-2021-20321)

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):

  • panic while breaking a lease/delegation after user mode helper invocation (BZ#2010333)

  • The ASR driver is causing a system crash in Rocky Linux8.4 compared to Rocky Linux8.3 due to kernel changes (BZ#2016384)

  • Rocky Linux8: DFS provided SMB shares are not accessible following unprivileged access (BZ#2017177)

  • Avoid hitting the rtnl_trylock/restart_syscall logic in net-sysfs when possible (BZ#2021165)

  • Rocky Linux8: x86/Kconfig: Do not enable AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT (BZ#2024678)

  • Rocky Linux8.4-[Regression][P10][DD2.0][Rainier/Denali] - system crashed while offlining and onlining cores (BZ#2026450)

4.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

4.7 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.0004 Low

EPSS

Percentile

5.3%