-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2023:5255-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2023:5255 Issue date: 2023-09-19 CVE Names: CVE-2023-2002 CVE-2023-3090 CVE-2023-3390 CVE-2023-3776 CVE-2023-4004 CVE-2023-20593 CVE-2023-35001 CVE-2023-35788 ===================================================================== 1. Summary: An update for kernel-rt is now available for Red Hat Enterprise Linux 8. '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. 8) - x86_64 Red Hat Enterprise Linux RT (v. 8) - 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: bluetooth: Unauthorized management command execution (CVE-2023-2002) * kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests (CVE-2023-3390) * kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt() (CVE-2023-35788) * hw: amd: Cross-Process Information Leak (CVE-2023-20593,zenbleed) * kernel: ipvlan: out-of-bounds write caused by unclear skb->cb (CVE-2023-3090) * kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval() (CVE-2023-35001,ZDI-CAN-20721) * 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) Bug Fix(es): * kernel-rt: update RT source tree to the RHEL-8.8.z3 source tree (BZ#2227068) * pods get restarted due to failed probes (BZ#2227238) 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/): 2187308 - CVE-2023-2002 Kernel: bluetooth: Unauthorized management command execution 2213260 - CVE-2023-3390 kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests 2215768 - CVE-2023-35788 kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt() 2217845 - CVE-2023-20593 hw: amd: Cross-Process Information Leak 2218672 - CVE-2023-3090 kernel: ipvlan: out-of-bounds write caused by unclear skb->cb 2220892 - CVE-2023-35001 kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval() 2225097 - CVE-2023-3776 kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function 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. 8): Source: kernel-rt-4.18.0-477.27.1.rt7.290.el8_8.src.rpm x86_64: kernel-rt-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-core-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-debug-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-debug-core-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-debug-devel-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-debug-kvm-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-debug-modules-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-debuginfo-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-devel-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-kvm-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-modules-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-modules-extra-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm Red Hat Enterprise Linux RT (v. 8): Source: kernel-rt-4.18.0-477.27.1.rt7.290.el8_8.src.rpm x86_64: kernel-rt-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-core-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-debug-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-debug-core-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-debug-devel-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-debug-modules-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-debuginfo-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-devel-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-modules-4.18.0-477.27.1.rt7.290.el8_8.x86_64.rpm kernel-rt-modules-extra-4.18.0-477.27.1.rt7.290.el8_8.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-2023-2002 https://access.redhat.com/security/cve/CVE-2023-3090 https://access.redhat.com/security/cve/CVE-2023-3390 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-2023-20593 https://access.redhat.com/security/cve/CVE-2023-35001 https://access.redhat.com/security/cve/CVE-2023-35788 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 iQIcBAEBCAAGBQJlCb3PAAoJENzjgjWX9erE+YYP/jPTkF67sKsa9bBckhKhdyuw 7Ch+dB0J6si9Dvv2GkQvf4EKs3SppHkBAT6ERHwV2pmQDWNc/PhFFy6aTf51QpJx pib7X2tU3bTmLxoWn2ptKQXpXUObmn/fnKanAln0g7viK315tNF3mj39JFswScXy da2dIFosbCc00jY31F9MUcwGC12cT4la8FMcUKlRt4KsGosdc/DwfwTWefTQOP5t +IC6cVkBHv7D21Xx6y3p9Csin5UmbRmorR1tUt2yeGt4mKCs8ID5JRTq49KZZ3gX uerXB9izPAlsSyigDgRqyV8zpN/Oq92tXbo5epHLAuGgiOl1Ehu2MstQHUwyrwVq jmE/H92t84UpCFsjHYNP1k9lqQ7RowO0gA70lqqKWC6CHk9toPog7fJ0fDBmSrdS EfeAUGSIWk9ZaqWuZ2EuAk9mihbzdvN6co4BPjS3ae/pt58OG8hPcTD9YXWcsUYZ 6BYpsBVG9RxHm0QZvE6CDcoyjoMa1LVFA5PJUoLZSj+dpwWsHNRBpDEEwmf2sSLY NzuzceVo/C3E7kMQwWf9l+wk7YCuedmURC/lKNHM5khg9BLYV9tEj/vSbazrc2sw jf9NMl8mhjDFRvl+CQr4HWmA9V1kMebqPAnTWDc/i6FBw/aLprH4dE3Eg67toC9w B/1Z92q3eHtrQyA++Sar =AnOA -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce