Home / mailings [RHSA-2023:5091-01] Important: kernel-rt security and bug fix update
Posted on 12 September 2023
RedHat===================================================================== Red Hat Security Advisory
Synopsis: Important: kernel-rt security and bug fix update
Advisory ID: RHSA-2023:5091-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:5091
Issue date: 2023-09-12
CVE Names: CVE-2023-1637 CVE-2023-3390 CVE-2023-3610
CVE-2023-3776 CVE-2023-4004 CVE-2023-4147
CVE-2023-20593 CVE-2023-21102 CVE-2023-31248
CVE-2023-35001
=====================================================================
1. Summary:
An update for kernel-rt is now available for Red Hat Enterprise Linux 9.
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 NFV (v. 9) - x86_64
Red Hat Enterprise Linux RT (v. 9) - x86_64
3. Description:
The kernel-rt packages provide the Real Time Linux Kernel, which enables
fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* kernel: UAF in nftables when nft_set_lookup_global triggered after
handling named and anonymous sets in batch requests (CVE-2023-3390)
* kernel: netfilter: nf_tables: fix chain binding transaction logic in the
abort path of NFT_MSG_NEWRULE (CVE-2023-3610)
* kernel: net/sched: cls_fw component can be exploited as result of failure
in tcf_change_indev function (CVE-2023-3776)
* kernel: netfilter: use-after-free due to improper element removal in
nft_pipapo_remove() (CVE-2023-4004)
* kernel: netfilter: nf_tables_newrule when adding a rule with
NFTA_RULE_CHAIN_ID leads to use-after-free (CVE-2023-4147)
* kernel: nf_tables: use-after-free in nft_chain_lookup_byid()
(CVE-2023-31248)
* kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval()
(CVE-2023-35001)
* kernel: save/restore speculative MSRs during S3 suspend/resume
(CVE-2023-1637)
* hw: amd: Cross-Process Information Leak (CVE-2023-20593)
* kernel: bypass of shadow stack protection due to a logic error
(CVE-2023-21102)
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):
* kernel-rt: update RT source tree to the latest RHEL-9.2.z3 Batch
(BZ#2228482)
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/):
2181891 - CVE-2023-1637 kernel: save/restore speculative MSRs during S3 suspend/resume
2213260 - CVE-2023-3390 kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests
2213455 - CVE-2023-21102 kernel: bypass of shadow stack protection due to a logic error
2217845 - CVE-2023-20593 hw: amd: Cross-Process Information Leak
2220892 - CVE-2023-35001 kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval()
2220893 - CVE-2023-31248 kernel: nf_tables: use-after-free in nft_chain_lookup_byid()
2225097 - CVE-2023-3776 kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function
2225198 - CVE-2023-3610 kernel: netfilter: nf_tables: fix chain binding transaction logic in the abort path of NFT_MSG_NEWRULE
2225239 - CVE-2023-4147 kernel: netfilter: nf_tables_newrule when adding a rule with NFTA_RULE_CHAIN_ID leads to use-after-free
2225275 - CVE-2023-4004 kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove()
6. Package List:
Red Hat Enterprise Linux NFV (v. 9):
Source:
kernel-rt-5.14.0-284.30.1.rt14.315.el9_2.src.rpm
x86_64:
kernel-rt-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-core-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-debug-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-debug-core-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-debug-debuginfo-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-debug-devel-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-debug-kvm-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-debug-modules-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-debug-modules-core-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-debug-modules-extra-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-debuginfo-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-devel-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-kvm-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-modules-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-modules-core-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-modules-extra-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
Red Hat Enterprise Linux RT (v. 9):
Source:
kernel-rt-5.14.0-284.30.1.rt14.315.el9_2.src.rpm
x86_64:
kernel-rt-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-core-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-debug-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-debug-core-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-debug-debuginfo-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-debug-devel-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-debug-modules-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-debug-modules-core-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-debug-modules-extra-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-debuginfo-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-devel-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-modules-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-modules-core-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
kernel-rt-modules-extra-5.14.0-284.30.1.rt14.315.el9_2.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2023-1637
https://access.redhat.com/security/cve/CVE-2023-3390
https://access.redhat.com/security/cve/CVE-2023-3610
https://access.redhat.com/security/cve/CVE-2023-3776
https://access.redhat.com/security/cve/CVE-2023-4004
https://access.redhat.com/security/cve/CVE-2023-4147
https://access.redhat.com/security/cve/CVE-2023-20593
https://access.redhat.com/security/cve/CVE-2023-21102
https://access.redhat.com/security/cve/CVE-2023-31248
https://access.redhat.com/security/cve/CVE-2023-35001
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2023 Red Hat, Inc.
