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redhatRedHatRHSA-2022:1324
HistoryApr 12, 2022 - 1:50 p.m.

(RHSA-2022:1324) Important: kernel security and bug fix update

2022-04-1213:50:29
access.redhat.com
44
kernel
linux
security fix
bug fix
local privilege escalation
rdma listen
fget
cve-2021-0920
cve-2021-4028
cve-2021-4083
cve-2022-22942
rtl8139
bz#2063889

CVSS2

6.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

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

31.3%

JSON

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

Security Fix(es):

  • kernel: Use After Free in unix_gc() which could result in a local privilege escalation (CVE-2021-0920)

  • kernel: use-after-free in RDMA listen() (CVE-2021-4028)

  • kernel: fget: check that the fd still exists after getting a ref to it (CVE-2021-4083)

  • kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942)

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):

  • guest using rtl8139 can not connect to network (BZ#2063889)
OSVersionArchitecturePackageVersionFilename
RedHat7ppc64lebpftool< 3.10.0-1062.66.1.el7bpftool-3.10.0-1062.66.1.el7.ppc64le.rpm
RedHat7x86_64kernel-debug-devel< 3.10.0-1062.66.1.el7kernel-debug-devel-3.10.0-1062.66.1.el7.x86_64.rpm
RedHat7x86_64kernel< 3.10.0-1062.66.1.el7kernel-3.10.0-1062.66.1.el7.x86_64.rpm
RedHat7ppc64lekernel-debuginfo< 3.10.0-1062.66.1.el7kernel-debuginfo-3.10.0-1062.66.1.el7.ppc64le.rpm
RedHat7ppc64leperf-debuginfo< 3.10.0-1062.66.1.el7perf-debuginfo-3.10.0-1062.66.1.el7.ppc64le.rpm
RedHat7x86_64perf< 3.10.0-1062.66.1.el7perf-3.10.0-1062.66.1.el7.x86_64.rpm
RedHat7ppc64lekernel-debug-devel< 3.10.0-1062.66.1.el7kernel-debug-devel-3.10.0-1062.66.1.el7.ppc64le.rpm
RedHat7x86_64kernel-debuginfo< 3.10.0-1062.66.1.el7kernel-debuginfo-3.10.0-1062.66.1.el7.x86_64.rpm
RedHat7ppc64lekernel-devel< 3.10.0-1062.66.1.el7kernel-devel-3.10.0-1062.66.1.el7.ppc64le.rpm
RedHat7ppc64lekernel-tools-libs< 3.10.0-1062.66.1.el7kernel-tools-libs-3.10.0-1062.66.1.el7.ppc64le.rpm
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CVSS2

6.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

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

31.3%

JSON
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