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redhatRedHatRHSA-2022:0636
HistoryFeb 22, 2022 - 2:35 p.m.

(RHSA-2022:0636) Important: kernel security and bug fix update

2022-02-2214:35:32
access.redhat.com
169

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

6.9 Medium

CVSS2

Access Vector

LOCAL

Access 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

0.001 Low

EPSS

Percentile

27.0%

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: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL (CVE-2021-4155)

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):

  • bpf: update to v5.7 (BZ#2019883)

  • Backport leftover migrate_disable BPF related change (BZ#2027687)

  • assuming atomic context at include/linux/filter.h:597 (BZ#2043427)

OSVersionArchitecturePackageVersionFilename
RedHat8s390xkernel-zfcpdump-modules-extra< 4.18.0-193.75.1.el8_2kernel-zfcpdump-modules-extra-4.18.0-193.75.1.el8_2.s390x.rpm
RedHat8noarchkernel-abi-whitelists< 4.18.0-193.75.1.el8_2kernel-abi-whitelists-4.18.0-193.75.1.el8_2.noarch.rpm
RedHat8ppc64lekernel-core< 4.18.0-193.75.1.el8_2kernel-core-4.18.0-193.75.1.el8_2.ppc64le.rpm
RedHat8s390xkernel-zfcpdump-core< 4.18.0-193.75.1.el8_2kernel-zfcpdump-core-4.18.0-193.75.1.el8_2.s390x.rpm
RedHat8ppc64lekernel-modules< 4.18.0-193.75.1.el8_2kernel-modules-4.18.0-193.75.1.el8_2.ppc64le.rpm
RedHat8x86_64kernel-debug-modules< 4.18.0-193.75.1.el8_2kernel-debug-modules-4.18.0-193.75.1.el8_2.x86_64.rpm
RedHat8s390xkernel-zfcpdump-modules< 4.18.0-193.75.1.el8_2kernel-zfcpdump-modules-4.18.0-193.75.1.el8_2.s390x.rpm
RedHat8x86_64kernel-modules-extra< 4.18.0-193.75.1.el8_2kernel-modules-extra-4.18.0-193.75.1.el8_2.x86_64.rpm
RedHat8aarch64kernel-tools-debuginfo< 4.18.0-193.75.1.el8_2kernel-tools-debuginfo-4.18.0-193.75.1.el8_2.aarch64.rpm
RedHat8aarch64kernel-debug-devel< 4.18.0-193.75.1.el8_2kernel-debug-devel-4.18.0-193.75.1.el8_2.aarch64.rpm
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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

6.9 Medium

CVSS2

Access Vector

LOCAL

Access 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

0.001 Low

EPSS

Percentile

27.0%

JSON
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