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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2022.6304 kernel-rt security and bug fix update 5 December 2022 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel-rt Publisher: Red Hat Operating System: Red Hat Resolution: Patch/Upgrade CVE Names: CVE-2022-2639 Original Bulletin: https://access.redhat.com/errata/RHSA-2022:8765 Comment: CVSS (Max): 7.8 CVE-2022-2639 (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-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2022:8765-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2022:8765 Issue date: 2022-12-02 CVE Names: CVE-2022-2639 ===================================================================== 1. Summary: An update for kernel-rt is now available for Red Hat Enterprise Linux 8.4 Extended Update Support. 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 Real Time EUS (v.8.4) - x86_64 Red Hat Enterprise Linux Real Time for NFV EUS (v.8.4) - 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: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size() (CVE-2022-2639) 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): * SNO Crashed twice - kernel BUG at lib/list_debug.c:28 (BZ#2132064) * kernel-rt: update RT source tree to the RHEL-8.4.z14 source tree. (BZ#2144040) 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/): 2084479 - CVE-2022-2639 kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size() 6. Package List: Red Hat Enterprise Linux Real Time for NFV EUS (v.8.4): Source: kernel-rt-4.18.0-305.72.1.rt7.144.el8_4.src.rpm x86_64: kernel-rt-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-core-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-debug-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-debug-core-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-debug-devel-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-debug-kvm-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-debug-modules-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-debuginfo-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-devel-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-kvm-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-modules-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-modules-extra-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm Red Hat Enterprise Linux Real Time EUS (v.8.4): Source: kernel-rt-4.18.0-305.72.1.rt7.144.el8_4.src.rpm x86_64: kernel-rt-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-core-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-debug-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-debug-core-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-debug-devel-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-debug-modules-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-debuginfo-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-devel-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-modules-4.18.0-305.72.1.rt7.144.el8_4.x86_64.rpm kernel-rt-modules-extra-4.18.0-305.72.1.rt7.144.el8_4.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-2022-2639 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 2022 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBY4qejNzjgjWX9erEAQh5Cg//e6xZT7HIGieyhScr1o+vegQh/hPTjgpU 8nuaWSdly3t0wfcTOg4VjD4LozuT61qmUoFpraho/4CMPOWHLaRuSbG2yXkUOXCy fF4kB5Lqe5aTTJWuz6Irne7gsWfVKUMwN7HuWhRdBAgGat2Cj8E6GFLFCjSwX6Tw LzmZb8fEeludinufE1TlaRQCQh7+BUUVW8B4hr6MK/kjjhv+ZKqfW3W5Gmmf9HNq NWggq8hPhQdAwPExlnEFqd2bRoTmajIGUxrh+nMncC38ymSTrasx3L2u84D+wXED iuzkWOtq0Vq0Erc9F72jSNtLEDcbPWsH0oSyG4XSUKnrgea/mlxU7YFXYpIU0BPS mJs1veFUgehIR5heY/m4CW4ko11F2rwinIAesQEwEOEyZHC01mmf9PCLG5vq2tq0 EolA2zYsldrFV4X15Y16ihy3ItbRpYI5I2Z1eSfN1r+Mp34HX72dD4nzoCV7jyLz buE+Rep/FjK1sH4rW+Wwcr1wLEzVEp+YgUZy72QOW71OtSKg4l+mp/RdVD2QPFL5 8Ta5xXJTJqEFvPNYaok86nDqG+KWXF4DMIUJesFIt8N5UviTtWb+4Ij9CuR5PS6x p+jyuAlN5ey8fnCZ2eIyAWdTTpO/zqN8nUrgi3JflngqplrKY5nl3LkKQ6OTZODu 2juCq8Xv4YI= =8j2W - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: https://auscert.org.au/gpg-key/ iQIVAwUBY41EwckNZI30y1K9AQg9Wg//dttROgcQ7tf+Wxgrl1waDPA+oiZjX8vh AiUIygnOXK6ufYC/OCqutMifsNqdE6h3PB7Woz0QT/zvP290aF3XKHA7PqRGAH3p OvRpt+Tu2J0+jObvZpKu4XW8xoy6wMGwY3OpDgm7Ucj/Hb4LUkZvU4D4AhJOlP8u +4jyvf38LjDAdaB7BUFrZYjUf87X5CN26At8D24zytCxWRuy75amYQ8fwdUL5uEg GpO2QKtEup2BNWZWpf4mz2PCiZMBZc8Hx16yLHQ7eW5J/1yXcOqyEVAs4tDcj+Dp xvvWDeLmnUf8Ho1sYxs3LPTUMukWMog263VA2pcTN52zLJUR7PeYFvEvSHesvLgv LpmRxWMhkQag5BaJggTv3sEXlGpNskG9gMdHp7UKS4yc+qhC5W8U+qCEsVe7iNuv lm9nr4G3s3vRN3dOqtKsJQLbKiuljzD62W/UsAovpm6b2/xHyTHF0TyzEKsn6dCB rrxd1t5n2l7CRx2f40nHMbQWE0IkdlTlka/UpgPEeBUdY68VmfHePADZkXewwvbN qAWNNqu+jzBHXsFXvMLf4u+CQSGZmgLC3J7jof7reECQZspVXFOaW0XJ0a1C3S9z CIwSuqW4kkfku9/LqKPGZ95Flu7PxL45R5x5Qjg5poTKAKFwlFA03n1ZrC05a+oy X0GsWraFjYI= =Wwfg -----END PGP SIGNATURE-----