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RHSA-2022:5641: Red Hat Security Advisory: kpatch-patch security update

An update is now available for Red Hat Enterprise Linux 8.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

Related CVEs:

  • CVE-2022-32250: kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root
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Issued:

2022-07-19

Updated:

2022-07-19

RHSA-2022:5641 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: kpatch-patch security update

Type/Severity

Security Advisory: Important

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update is now available for Red Hat Enterprise Linux 8.4 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

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):

  • kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root (CVE-2022-32250)

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.

Affected Products

  • Red Hat Enterprise Linux Server - TUS 8.4 x86_64

Fixes

  • BZ - 2092427 - CVE-2022-32250 kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root

Red Hat Enterprise Linux Server - TUS 8.4

SRPM

kpatch-patch-4_18_0-305_10_2-1-11.el8_4.src.rpm

SHA-256: cb48da1d22465f038b9cb2c7ece03fcdd69860884fdbf311e9b9664310983e96

kpatch-patch-4_18_0-305_12_1-1-10.el8_4.src.rpm

SHA-256: 6be1c8b59e7e5bba4837110ccbf9cbd1f4c4365df2ed98b94a59be8f4a07aba2

kpatch-patch-4_18_0-305_17_1-1-9.el8_4.src.rpm

SHA-256: 0fcfd5cdc41a6f9acd0d8e5680443bc3694111e816a2705de3adefc977ce1269

kpatch-patch-4_18_0-305_19_1-1-9.el8_4.src.rpm

SHA-256: 8a0804e7ba3bf7792b2d2b006b7fd1d423918edbe3f3f732245cb3e224bcb636

kpatch-patch-4_18_0-305_25_1-1-8.el8_4.src.rpm

SHA-256: 38f76fb5506496be321986d0c7328c0ace3e741e1004701a3057f9a16535df5b

kpatch-patch-4_18_0-305_30_1-1-6.el8_4.src.rpm

SHA-256: 758ec1e28b2b08f9c6956bbc735e45fb23d56a3520bfde1356d8a02e5041d2f8

kpatch-patch-4_18_0-305_34_2-1-4.el8_4.src.rpm

SHA-256: 111725476d2d22c88afbcef19366cac547709cd9491a17469eb3ecbc288892e1

kpatch-patch-4_18_0-305_40_1-1-3.el8_4.src.rpm

SHA-256: 5452ec575a610123ead8f18dde28ece42dfc66190c3825ed60b150ec8a1b5bde

kpatch-patch-4_18_0-305_40_2-1-3.el8_4.src.rpm

SHA-256: 1f6be5daff12b2ff903e0f4c7943df2ff6fa8623c09fa79e042e8fdf19fac669

kpatch-patch-4_18_0-305_45_1-1-2.el8_4.src.rpm

SHA-256: 4439a6a8feedea42576dac6c1cc17a3bcca91da79185bdc4f47847aa5e1404f4

kpatch-patch-4_18_0-305_49_1-1-1.el8_4.src.rpm

SHA-256: 4f842e1e837c675a3b4b5556651c84cde43fb56be717fdef33fe1fcf64e3156d

x86_64

kpatch-patch-4_18_0-305_10_2-1-11.el8_4.x86_64.rpm

SHA-256: d3dfd8ff8c939e68735c19e4c4d8ecc6a5694c80918494a63ac39690b379859a

kpatch-patch-4_18_0-305_12_1-1-10.el8_4.x86_64.rpm

SHA-256: 0aa73c220e7f76c44161b49ad2a71d2c25f03639f61880da9852a458f26bbd85

kpatch-patch-4_18_0-305_17_1-1-9.el8_4.x86_64.rpm

SHA-256: 122ad42f55e28effe93fce56c476266b1027cd0329a70d010c67f85ecbdaba92

kpatch-patch-4_18_0-305_19_1-1-9.el8_4.x86_64.rpm

SHA-256: bfe71d78e62adf2428535a2aa2061a3e8f36d592ea9dda4edeb7874f312e5120

kpatch-patch-4_18_0-305_25_1-1-8.el8_4.x86_64.rpm

SHA-256: 5efc3ec1a84a1d846071db57694fecbbb2750b174550ecb1dfbf275886e9b360

kpatch-patch-4_18_0-305_30_1-1-6.el8_4.x86_64.rpm

SHA-256: 0f57d37fe633ce75e3e1b52d3e5073ac3a3fb1352785031b3496869beb0e0261

kpatch-patch-4_18_0-305_34_2-1-4.el8_4.x86_64.rpm

SHA-256: 6357ec34bdf35c8cc7b5d7fe1cc0e315347f8b94414ea44f5f17711b15320f1b

kpatch-patch-4_18_0-305_40_1-1-3.el8_4.x86_64.rpm

SHA-256: dec3079007078bc1863a98217af3442edd76c7c89bb25a5d3a19406bd7f93568

kpatch-patch-4_18_0-305_40_2-1-3.el8_4.x86_64.rpm

SHA-256: f3ce8c648a0e05149df0974c8cfb5a491afe5f1631b1507ef9cbf694fff39f5c

kpatch-patch-4_18_0-305_45_1-1-2.el8_4.x86_64.rpm

SHA-256: 770159eda7d433a17e2791f200b04d78b6b8b477956b95fb07cb0f3c3c803a78

kpatch-patch-4_18_0-305_49_1-1-1.el8_4.x86_64.rpm

SHA-256: eb6bf3bbc5b18b15bef020546ce93c802b63ac11445799c902625d62b4a7f80e

The Red Hat security contact is [email protected]. More contact details at https://access.redhat.com/security/team/contact/.

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CVE-2022-32250: security - Linux Kernel use-after-free write in netfilter

net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to a use-after-free.