-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== 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 . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2023 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCAAGBQJlAINXAAoJENzjgjWX9erEp/8P/iIkE9S25nRDZSHimk3J4iIW WJu2kS06jJl4o116N8AREuoiRvKDQk+1fSN/nhjAj4mihEOvUbq+Ogj96+lezwt8 507Qwo2CciRYK/wwcb1slMT5mSF8/DjwzoikRtgd6WpYtyiSqcqGQvouiieV8SXO EtqpY39py6RgCtmFgjOv4SKetj5RaasMpAOdopio/oOFchWQBcKc20cAAE0e2g6l 4RtIop/rNijrq+WhnLisXzTOgghzpez3tIIsSwqLvHZp6MGjxirXyVF429MSF70d /gavs7/IsLPHTSfgoGmww1W9RJU8QSNnozHsRFnSRTyaBAAceWJjWez4sWnlcDjS y9CnlY1hwjict9lZQEZicppTBA+AVK/n1Ztpr2kR2bSSrN9t3Zjme8lZ9sCObUEW MjNEPVLmOiKfi6BTnyjjSMPyRij0orvq30VijfJhzTlAqbuUJq8e4ttGtcgL8Fgu dcLitdVKFOtAncTnrlrfowEr6dR5ErEo27dRb8vUhnZUA8loknreLgIdr/ygAA6H zXGCWhMN4CgUOiKrr689ycqw9G0pGmhQIbWZ6VzEYGgfTRBtakh7pD/QwANbwQ6P 902UGNgV1NzUtyx6uBG1IG1WoJ7LyueDD1QX1XWC10hxL9Dha9kEUBXJgzdaO6+T zhLnpqEUrXQxBEVDGTyZ =Ttpn -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce