kernel: CVSS (Max): 7.1

April 19, 2024

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AUSCERT External Security Bulletin Redistribution

ESB-2024.2399
kernel security and bug fix update
19 April 2024

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AusCERT Security Bulletin Summary
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Product: kernel
Publisher: Red Hat
Operating System: Red Hat
Resolution: Patch/Upgrade
CVE Names: CVE-2021-47099 CVE-2022-42895 CVE-2021-26341
CVE-2022-1852 CVE-2022-3640 CVE-2022-1184

Original Bulletin:
https://access.redhat.com/errata/RHSA-2024:1877

Comment: CVSS (Max): 7.1 CVE-2022-3640 (CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)
CVSS Source: Red Hat
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

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Red Hat Security Advisory

Synopsis: Moderate: kernel security and bug fix update
Advisory ID: RHSA-2024:1877
Product: Red Hat Enterprise Linux BaseOS EUS (v.8.6)
Advisory URL: https://access.redhat.com/errata/RHSA-2024:1877
Issue date: 2024-04-18
CVE Names: CVE-2021-26341 CVE-2021-47099 CVE-2022-1184 CVE-2022-1852
CVE-2022-3640 CVE-2022-42895
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1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 8.6 Extended
Update Support.

Red Hat Product Security has rated this update as having a security impact of
Moderate. 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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux BaseOS EUS (v.8.6) – aarch64, ppc64le, x86_64, s390x,
noarch
Red Hat CodeReady Linux Builder EUS (v.8.6) – aarch64, ppc64le, x86_64, s390x,
noarch
Red Hat Virtualization 4 Hypervisor for RHEL 8 – aarch64, ppc64le, x86_64,
s390x, noarch

3. Description:

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

Security Fix(es):

* hw: cpu: AMD CPUs may transiently execute beyond unconditional direct branch
(CVE-2021-26341)

* kernel: use-after-free and memory errors in ext4 when mounting and operating
on a corrupted image (CVE-2022-1184)

* kernel: NULL pointer dereference in x86_emulate_insn may lead to DoS
(CVE-2022-1852)

* kernel: use after free flaw in l2cap_conn_del in net/bluetooth/l2cap_core.c
(CVE-2022-3640)

* kernel: Information leak in l2cap_parse_conf_req in net/bluetooth/l2cap_core.c
(CVE-2022-42895)

* kernel: veth: ensure skb entering GRO are not cloned. (CVE-2021-47099)

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

5. Bugs fixed (https://bugzilla.redhat.com/):

2061703 – CVE-2021-26341 – hw: cpu: AMD CPUs may transiently execute beyond
unconditional direct branch
2267919 – CVE-2021-47099 – kernel: veth: ensure skb entering GRO are not cloned.
2070205 – CVE-2022-1184 – kernel: use-after-free and memory errors in ext4 when
mounting and operating on a corrupted image
2089815 – CVE-2022-1852 – kernel: NULL pointer dereference in x86_emulate_insn
may lead to DoS
2139610 – CVE-2022-3640 – kernel: use after free flaw in l2cap_conn_del in
net/bluetooth/l2cap_core.c
2147356 – CVE-2022-42895 – kernel: Information leak in l2cap_parse_conf_req in
net/bluetooth/l2cap_core.c

6. Package List:

Red Hat Enterprise Linux BaseOS EUS (v.8.6)

aarch64:
bpftool-0:4.18.0-372.100.1.el8_6.aarch64.rpm
bpftool-debuginfo-0:4.18.0-372.100.1.el8_6.aarch64.rpm
kernel-0:4.18.0-372.100.1.el8_6.aarch64.rpm
kernel-core-0:4.18.0-372.100.1.el8_6.aarch64.rpm
kernel-cross-headers-0:4.18.0-372.100.1.el8_6.aarch64.rpm
kernel-debug-0:4.18.0-372.100.1.el8_6.aarch64.rpm
kernel-debug-core-0:4.18.0-372.100.1.el8_6.aarch64.rpm
kernel-debug-debuginfo-0:4.18.0-372.100.1.el8_6.aarch64.rpm
kernel-debug-devel-0:4.18.0-372.100.1.el8_6.aarch64.rpm
kernel-debug-modules-0:4.18.0-372.100.1.el8_6.aarch64.rpm
kernel-debug-modules-extra-0:4.18.0-372.100.1.el8_6.aarch64.rpm
kernel-debuginfo-0:4.18.0-372.100.1.el8_6.aarch64.rpm
kernel-debuginfo-common-aarch64-0:4.18.0-372.100.1.el8_6.aarch64.rpm
kernel-devel-0:4.18.0-372.100.1.el8_6.aarch64.rpm
kernel-headers-0:4.18.0-372.100.1.el8_6.aarch64.rpm
kernel-modules-0:4.18.0-372.100.1.el8_6.aarch64.rpm
kernel-modules-extra-0:4.18.0-372.100.1.el8_6.aarch64.rpm
kernel-tools-0:4.18.0-372.100.1.el8_6.aarch64.rpm
kernel-tools-debuginfo-0:4.18.0-372.100.1.el8_6.aarch64.rpm
kernel-tools-libs-0:4.18.0-372.100.1.el8_6.aarch64.rpm
kernel-tools-libs-devel-0:4.18.0-372.100.1.el8_6.aarch64.rpm
perf-0:4.18.0-372.100.1.el8_6.aarch64.rpm
perf-debuginfo-0:4.18.0-372.100.1.el8_6.aarch64.rpm
python3-perf-0:4.18.0-372.100.1.el8_6.aarch64.rpm
python3-perf-debuginfo-0:4.18.0-372.100.1.el8_6.aarch64.rpm

ppc64le:
bpftool-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
bpftool-debuginfo-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
kernel-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
kernel-core-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
kernel-cross-headers-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
kernel-debug-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
kernel-debug-core-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
kernel-debug-debuginfo-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
kernel-debug-devel-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
kernel-debug-modules-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
kernel-debug-modules-extra-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
kernel-debuginfo-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
kernel-debuginfo-common-ppc64le-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
kernel-devel-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
kernel-headers-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
kernel-modules-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
kernel-modules-extra-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
kernel-tools-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
kernel-tools-debuginfo-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
kernel-tools-libs-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
kernel-tools-libs-devel-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
perf-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
perf-debuginfo-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
python3-perf-0:4.18.0-372.100.1.el8_6.ppc64le.rpm
python3-perf-debuginfo-0:4.18.0-372.100.1.el8_6.ppc64le.rpm

s390x:
bpftool-0:4.18.0-372.100.1.el8_6.s390x.rpm
bpftool-debuginfo-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-core-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-cross-headers-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-debug-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-debug-core-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-debug-debuginfo-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-debug-devel-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-debug-modules-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-debug-modules-extra-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-debuginfo-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-debuginfo-common-s390x-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-devel-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-headers-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-modules-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-modules-extra-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-tools-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-tools-debuginfo-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-zfcpdump-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-zfcpdump-core-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-zfcpdump-debuginfo-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-zfcpdump-devel-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-zfcpdump-modules-0:4.18.0-372.100.1.el8_6.s390x.rpm
kernel-zfcpdump-modules-extra-0:4.18.0-372.100.1.el8_6.s390x.rpm
perf-0:4.18.0-372.100.1.el8_6.s390x.rpm
perf-debuginfo-0:4.18.0-372.100.1.el8_6.s390x.rpm
python3-perf-0:4.18.0-372.100.1.el8_6.s390x.rpm
python3-perf-debuginfo-0:4.18.0-372.100.1.el8_6.s390x.rpm

x86_64:
bpftool-0:4.18.0-372.100.1.el8_6.x86_64.rpm
bpftool-debuginfo-0:4.18.0-372.100.1.el8_6.x86_64.rpm
kernel-0:4.18.0-372.100.1.el8_6.x86_64.rpm
kernel-core-0:4.18.0-372.100.1.el8_6.x86_64.rpm
kernel-cross-headers-0:4.18.0-372.100.1.el8_6.x86_64.rpm
kernel-debug-0:4.18.0-372.100.1.el8_6.x86_64.rpm
kernel-debug-core-0:4.18.0-372.100.1.el8_6.x86_64.rpm
kernel-debug-debuginfo-0:4.18.0-372.100.1.el8_6.x86_64.rpm
kernel-debug-devel-0:4.18.0-372.100.1.el8_6.x86_64.rpm
kernel-debug-modules-0:4.18.0-372.100.1.el8_6.x86_64.rpm
kernel-debug-modules-extra-0:4.18.0-372.100.1.el8_6.x86_64.rpm
kernel-debuginfo-0:4.18.0-372.100.1.el8_6.x86_64.rpm
kernel-debuginfo-common-x86_64-0:4.18.0-372.100.1.el8_6.x86_64.rpm
kernel-devel-0:4.18.0-372.100.1.el8_6.x86_64.rpm
kernel-headers-0:4.18.0-372.100.1.el8_6.x86_64.rpm
kernel-modules-0:4.18.0-372.100.1.el8_6.x86_64.rpm
kernel-modules-extra-0:4.18.0-372.100.1.el8_6.x86_64.rpm
kernel-tools-0:4.18.0-372.100.1.el8_6.x86_64.rpm
kernel-tools-debuginfo-0:4.18.0-372.100.1.el8_6.x86_64.rpm
kernel-tools-libs-0:4.18.0-372.100.1.el8_6.x86_64.rpm
kernel-tools-libs-devel-0:4.18.0-372.100.1.el8_6.x86_64.rpm
perf-0:4.18.0-372.100.1.el8_6.x86_64.rpm
perf-debuginfo-0:4.18.0-372.100.1.el8_6.x86_64.rpm
python3-perf-0:4.18.0-372.100.1.el8_6.x86_64.rpm
python3-perf-debuginfo-0:4.18.0-372.100.1.el8_6.x86_64.rpm

Source:
kernel-0:4.18.0-372.100.1.el8_6.src.rpm

noarch:
kernel-abi-stablelists-0:4.18.0-372.100.1.el8_6.noarch.rpm
kernel-doc-0:4.18.0-372.100.1.el8_6.noarch.rpm

Red Hat CodeReady Linux Builder EUS (v.8.6)

Source:
kernel-0:4.18.0-372.100.1.el8_6.src.rpm

noarch:
kernel-abi-stablelists-0:4.18.0-372.100.1.el8_6.noarch.rpm
kernel-doc-0:4.18.0-372.100.1.el8_6.noarch.rpm

Red Hat Virtualization 4 Hypervisor for RHEL 8

Source:
kernel-0:4.18.0-372.100.1.el8_6.src.rpm

noarch:
kernel-abi-stablelists-0:4.18.0-372.100.1.el8_6.noarch.rpm
kernel-doc-0:4.18.0-372.100.1.el8_6.noarch.rpm

7. References:

https://access.redhat.com/security/cve/CVE-2021-26341
https://access.redhat.com/security/cve/CVE-2021-47099
https://access.redhat.com/security/cve/CVE-2022-1184
https://access.redhat.com/security/cve/CVE-2022-1852
https://access.redhat.com/security/cve/CVE-2022-3640
https://access.redhat.com/security/cve/CVE-2022-42895
https://access.redhat.com/security/updates/classification/#moderate

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