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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2023.5858
      [RHSA-2023:5622] Important: kernel security and bug fix update
                              11 October 2023

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           kernel
Publisher:         Red Hat
Operating System:  Red Hat
Resolution:        Patch/Upgrade
CVE Names:         CVE-2023-35001 CVE-2023-32233 CVE-2023-3609

Original Bulletin: 
   https://access.redhat.com/errata/RHSA-2023:5622

Comment: CVSS (Max):  7.8 CVE-2023-35001 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

- --------------------------BEGIN INCLUDED TEXT--------------------

=====================================================================
                Red Hat Security Advisory

Synopsis:          Important: kernel security and bug fix update
Advisory ID:       RHSA-2023:5622
Product:           Red Hat Enterprise Linux Client (v. 7)
Advisory URL:      https://access.redhat.com/errata/RHSA-2023:5622
Issue date:        2023-10-10
CVE Names:         CVE-2023-3609 CVE-2023-32233 CVE-2023-35001
=====================================================================

1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 7.

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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - x86_64, noarch, ppc64le, ppc64, s390x 
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64, noarch, ppc64le,
ppc64, s390x
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64, noarch, ppc64le, ppc64,
s390x
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64, noarch, ppc64le,
ppc64, s390x
Red Hat Enterprise Linux Server (v. 7) - x86_64, noarch, ppc64le, ppc64, s390x 
Red Hat Enterprise Linux Server Optional (v. 7) - x86_64, noarch, ppc64le,
ppc64, s390x
Red Hat Enterprise Linux Workstation (v. 7) - x86_64, noarch, ppc64le, ppc64,
s390x
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64, noarch, ppc64le,
ppc64, s390x

3. Description:

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

Security Fix(es):

* kernel: net/sched: cls_u32 component reference counter leak if
tcf_change_indev() fails (CVE-2023-3609)

* kernel: netfilter: use-after-free in nf_tables when processing batch requests
can lead to privilege escalation (CVE-2023-32233)

* kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval()
(CVE-2023-35001)

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):

* Low memory deadlock with md devices and external (imsm) metadata handling
(BZ#1703180)

* cifs: memory leak in smb2_query_symlink (BZ#2166706)

* bnxt_en: panic in bnxt_tx_int Redux (BZ#2175062)

* NFS client loop in BIND_CONN_TO_SESSION (BZ#2219604)

4. Solution:

For details on how to apply this update, which includes the changes described in
this advisory, 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/):

2225201 - CVE-2023-3609 - cls_u32 component reference counter leak if
tcf_change_indev() fails
2196105 - CVE-2023-32233 - use-after-free in nf_tables when processing batch
requests can lead to privilege escalation
2220892 - CVE-2023-35001 - stack-out-of-bounds-read in nft_byteorder_eval() 

6. Package List:

Red Hat Enterprise Linux Client (v. 7)

x86_64:
bpftool-0:3.10.0-1160.102.1.el7.x86_64.rpm
bpftool-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debug-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debug-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debug-devel-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-devel-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-tools-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-tools-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-tools-libs-0:3.10.0-1160.102.1.el7.x86_64.rpm
perf-0:3.10.0-1160.102.1.el7.x86_64.rpm
perf-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
python-perf-0:3.10.0-1160.102.1.el7.x86_64.rpm
python-perf-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-headers-0:3.10.0-1160.102.1.el7.x86_64.rpm

Source:
kernel-0:3.10.0-1160.102.1.el7.src.rpm

noarch:
kernel-abi-whitelists-0:3.10.0-1160.102.1.el7.noarch.rpm
kernel-doc-0:3.10.0-1160.102.1.el7.noarch.rpm

Red Hat Enterprise Linux Client Optional (v. 7)

x86_64:
bpftool-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debug-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-tools-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-tools-libs-devel-0:3.10.0-1160.102.1.el7.x86_64.rpm
perf-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
python-perf-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7)

x86_64:
bpftool-0:3.10.0-1160.102.1.el7.x86_64.rpm
bpftool-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debug-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debug-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debug-devel-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-devel-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-tools-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-tools-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-tools-libs-0:3.10.0-1160.102.1.el7.x86_64.rpm
perf-0:3.10.0-1160.102.1.el7.x86_64.rpm
perf-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
python-perf-0:3.10.0-1160.102.1.el7.x86_64.rpm
python-perf-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-headers-0:3.10.0-1160.102.1.el7.x86_64.rpm

Source:
kernel-0:3.10.0-1160.102.1.el7.src.rpm

noarch:
kernel-abi-whitelists-0:3.10.0-1160.102.1.el7.noarch.rpm
kernel-doc-0:3.10.0-1160.102.1.el7.noarch.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7)

x86_64:
bpftool-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debug-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-tools-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-tools-libs-devel-0:3.10.0-1160.102.1.el7.x86_64.rpm
perf-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
python-perf-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7)

ppc64:
bpftool-0:3.10.0-1160.102.1.el7.ppc64.rpm
bpftool-debuginfo-0:3.10.0-1160.102.1.el7.ppc64.rpm
kernel-0:3.10.0-1160.102.1.el7.ppc64.rpm
kernel-bootwrapper-0:3.10.0-1160.102.1.el7.ppc64.rpm
kernel-debug-0:3.10.0-1160.102.1.el7.ppc64.rpm
kernel-debug-debuginfo-0:3.10.0-1160.102.1.el7.ppc64.rpm
kernel-debug-devel-0:3.10.0-1160.102.1.el7.ppc64.rpm
kernel-debuginfo-0:3.10.0-1160.102.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-0:3.10.0-1160.102.1.el7.ppc64.rpm
kernel-devel-0:3.10.0-1160.102.1.el7.ppc64.rpm
kernel-tools-0:3.10.0-1160.102.1.el7.ppc64.rpm
kernel-tools-debuginfo-0:3.10.0-1160.102.1.el7.ppc64.rpm
kernel-tools-libs-0:3.10.0-1160.102.1.el7.ppc64.rpm
perf-0:3.10.0-1160.102.1.el7.ppc64.rpm
perf-debuginfo-0:3.10.0-1160.102.1.el7.ppc64.rpm
python-perf-0:3.10.0-1160.102.1.el7.ppc64.rpm
python-perf-debuginfo-0:3.10.0-1160.102.1.el7.ppc64.rpm
kernel-headers-0:3.10.0-1160.102.1.el7.ppc64.rpm

ppc64le:
bpftool-0:3.10.0-1160.102.1.el7.ppc64le.rpm
bpftool-debuginfo-0:3.10.0-1160.102.1.el7.ppc64le.rpm
kernel-0:3.10.0-1160.102.1.el7.ppc64le.rpm
kernel-bootwrapper-0:3.10.0-1160.102.1.el7.ppc64le.rpm
kernel-debug-0:3.10.0-1160.102.1.el7.ppc64le.rpm
kernel-debug-debuginfo-0:3.10.0-1160.102.1.el7.ppc64le.rpm
kernel-debuginfo-0:3.10.0-1160.102.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-0:3.10.0-1160.102.1.el7.ppc64le.rpm
kernel-devel-0:3.10.0-1160.102.1.el7.ppc64le.rpm
kernel-tools-0:3.10.0-1160.102.1.el7.ppc64le.rpm
kernel-tools-debuginfo-0:3.10.0-1160.102.1.el7.ppc64le.rpm
kernel-tools-libs-0:3.10.0-1160.102.1.el7.ppc64le.rpm
perf-0:3.10.0-1160.102.1.el7.ppc64le.rpm
perf-debuginfo-0:3.10.0-1160.102.1.el7.ppc64le.rpm
python-perf-0:3.10.0-1160.102.1.el7.ppc64le.rpm
python-perf-debuginfo-0:3.10.0-1160.102.1.el7.ppc64le.rpm
kernel-headers-0:3.10.0-1160.102.1.el7.ppc64le.rpm

s390x:
bpftool-0:3.10.0-1160.102.1.el7.s390x.rpm
bpftool-debuginfo-0:3.10.0-1160.102.1.el7.s390x.rpm
kernel-0:3.10.0-1160.102.1.el7.s390x.rpm
kernel-debug-0:3.10.0-1160.102.1.el7.s390x.rpm
kernel-debug-debuginfo-0:3.10.0-1160.102.1.el7.s390x.rpm
kernel-debug-devel-0:3.10.0-1160.102.1.el7.s390x.rpm
kernel-debuginfo-0:3.10.0-1160.102.1.el7.s390x.rpm
kernel-debuginfo-common-s390x-0:3.10.0-1160.102.1.el7.s390x.rpm
kernel-devel-0:3.10.0-1160.102.1.el7.s390x.rpm
kernel-kdump-0:3.10.0-1160.102.1.el7.s390x.rpm
kernel-kdump-debuginfo-0:3.10.0-1160.102.1.el7.s390x.rpm
kernel-kdump-devel-0:3.10.0-1160.102.1.el7.s390x.rpm
perf-0:3.10.0-1160.102.1.el7.s390x.rpm
perf-debuginfo-0:3.10.0-1160.102.1.el7.s390x.rpm
python-perf-0:3.10.0-1160.102.1.el7.s390x.rpm
python-perf-debuginfo-0:3.10.0-1160.102.1.el7.s390x.rpm
kernel-headers-0:3.10.0-1160.102.1.el7.s390x.rpm

x86_64:
bpftool-0:3.10.0-1160.102.1.el7.x86_64.rpm
bpftool-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debug-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debug-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debug-devel-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-devel-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-tools-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-tools-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-tools-libs-0:3.10.0-1160.102.1.el7.x86_64.rpm
perf-0:3.10.0-1160.102.1.el7.x86_64.rpm
perf-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
python-perf-0:3.10.0-1160.102.1.el7.x86_64.rpm
python-perf-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-headers-0:3.10.0-1160.102.1.el7.x86_64.rpm

Source:
kernel-0:3.10.0-1160.102.1.el7.src.rpm

noarch:
kernel-abi-whitelists-0:3.10.0-1160.102.1.el7.noarch.rpm
kernel-doc-0:3.10.0-1160.102.1.el7.noarch.rpm

Red Hat Enterprise Linux Server Optional (v. 7)

ppc64:
bpftool-debuginfo-0:3.10.0-1160.102.1.el7.ppc64.rpm
kernel-debug-debuginfo-0:3.10.0-1160.102.1.el7.ppc64.rpm
kernel-debuginfo-0:3.10.0-1160.102.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-0:3.10.0-1160.102.1.el7.ppc64.rpm
kernel-tools-debuginfo-0:3.10.0-1160.102.1.el7.ppc64.rpm
kernel-tools-libs-devel-0:3.10.0-1160.102.1.el7.ppc64.rpm
perf-debuginfo-0:3.10.0-1160.102.1.el7.ppc64.rpm
python-perf-debuginfo-0:3.10.0-1160.102.1.el7.ppc64.rpm

ppc64le:
bpftool-debuginfo-0:3.10.0-1160.102.1.el7.ppc64le.rpm
kernel-debug-debuginfo-0:3.10.0-1160.102.1.el7.ppc64le.rpm
kernel-debug-devel-0:3.10.0-1160.102.1.el7.ppc64le.rpm
kernel-debuginfo-0:3.10.0-1160.102.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-0:3.10.0-1160.102.1.el7.ppc64le.rpm
kernel-tools-debuginfo-0:3.10.0-1160.102.1.el7.ppc64le.rpm
kernel-tools-libs-devel-0:3.10.0-1160.102.1.el7.ppc64le.rpm
perf-debuginfo-0:3.10.0-1160.102.1.el7.ppc64le.rpm
python-perf-debuginfo-0:3.10.0-1160.102.1.el7.ppc64le.rpm

x86_64:
bpftool-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debug-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-tools-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-tools-libs-devel-0:3.10.0-1160.102.1.el7.x86_64.rpm
perf-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
python-perf-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7)

x86_64:
bpftool-0:3.10.0-1160.102.1.el7.x86_64.rpm
bpftool-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debug-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debug-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debug-devel-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-devel-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-tools-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-tools-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-tools-libs-0:3.10.0-1160.102.1.el7.x86_64.rpm
perf-0:3.10.0-1160.102.1.el7.x86_64.rpm
perf-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
python-perf-0:3.10.0-1160.102.1.el7.x86_64.rpm
python-perf-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-headers-0:3.10.0-1160.102.1.el7.x86_64.rpm

Source:
kernel-0:3.10.0-1160.102.1.el7.src.rpm

noarch:
kernel-abi-whitelists-0:3.10.0-1160.102.1.el7.noarch.rpm
kernel-doc-0:3.10.0-1160.102.1.el7.noarch.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7)

x86_64:
bpftool-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debug-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-tools-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
kernel-tools-libs-devel-0:3.10.0-1160.102.1.el7.x86_64.rpm
perf-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm
python-perf-debuginfo-0:3.10.0-1160.102.1.el7.x86_64.rpm

7. References:

https://www.cve.org/CVERecord?id=CVE-2023-3609
https://www.cve.org/CVERecord?id=CVE-2023-32233
https://www.cve.org/CVERecord?id=CVE-2023-35001
https://access.redhat.com/security/updates/classification/#important

- --------------------------END INCLUDED TEXT--------------------

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