Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2022.5546 kernel-rt security and bug fix update 3 November 2022 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel-rt Publisher: Red Hat Operating System: Red Hat Resolution: Patch/Upgrade CVE Names: CVE-2022-30594 CVE-2022-2585 Original Bulletin: https://access.redhat.com/errata/RHSA-2022:7319 Comment: CVSS (Max): 7.8 CVE-2022-2585 (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-2022:7319-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2022:7319 Issue date: 2022-11-02 CVE Names: CVE-2022-2585 CVE-2022-30594 ===================================================================== 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 Real Time (v. 9) - x86_64 Red Hat Enterprise Linux Real Time for NFV (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): * posix cpu timer use-after-free may lead to local privilege escalation (CVE-2022-2585) * Unprivileged users may use PTRACE_SEIZE to set PTRACE_O_SUSPEND_SECCOMP option (CVE-2022-30594) 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): * Update RT source tree to the latest RHEL-9.0.z4 Batch (BZ#2123498) 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/): 2085300 - CVE-2022-30594 kernel: Unprivileged users may use PTRACE_SEIZE to set PTRACE_O_SUSPEND_SECCOMP option 2114874 - CVE-2022-2585 kernel: posix cpu timer use-after-free may lead to local privilege escalation 6. Package List: Red Hat Enterprise Linux Real Time for NFV (v. 9): Source: kernel-rt-5.14.0-70.30.1.rt21.102.el9_0.src.rpm x86_64: kernel-rt-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-core-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debug-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debug-core-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debug-debuginfo-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debug-devel-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debug-kvm-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debug-modules-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debug-modules-extra-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debuginfo-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debuginfo-common-x86_64-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-devel-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-kvm-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-modules-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-modules-extra-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm Red Hat Enterprise Linux Real Time (v. 9): Source: kernel-rt-5.14.0-70.30.1.rt21.102.el9_0.src.rpm x86_64: kernel-rt-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-core-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debug-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debug-core-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debug-debuginfo-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debug-devel-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debug-modules-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debug-modules-extra-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debuginfo-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debuginfo-common-x86_64-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-devel-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-modules-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-modules-extra-5.14.0-70.30.1.rt21.102.el9_0.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-2022-2585 https://access.redhat.com/security/cve/CVE-2022-30594 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 iQIVAwUBY2K9QtzjgjWX9erEAQiFLQ/+K6viC4XHwAj5lozXPGUlcQGQbeWWMB7q 0IMXwfGG+V8e4hRGQkqzBy2xZ5utcryPOCEbtygSbcZVHzyTvZbVU0yxJiH1fKLO +YfjYCoiu19G/KRkhOUEOB/23yJE9iKAL78pobh4GRCZ5/dp2tQDgRT7Nh72RXQT G/QkCNxQ5KMFtcsVNg4yN8BR5XS2vT83UrQ/B0PK4hcTIGlNw8OD2m6269HvSU4O fsVnF/igjUeLCcjCp/bHlT7+mJaTDSOro5EiMtEi2Q12etYIMnFIWBa8C8SzrjQc Mtn6Olon8s6uZt7KHan1zjJX6bGCKmnJZULW1IPnpDMWIRHBccOiM7vb9hrQVqCT QBWzf9hEOxc6ZzAwEO0mmFC6qrnBQUClZRF1/crDswTcp64RhBBgQZ0LlQvs1M1K L8wnuPCL4gY50B9nH2CX2sg8OffX9T8jNakSSbZCLduFvp0r7m2oQOK9vF5lMfQX 3B9vvq628DDVzveiw/LRxXtrFHAOM/SlYhz8iTp+L9JMQiwIl8c6SRMkXEqvLvLH C2iizwJircxlyXO6Jnd36yiy2Acbr24gPP2cycCYvlAWEegTcUAHEAiYVRmNiEzO csQhdzfQvGAawuiNSxuoNY608XWFdgBLGnXMjWKEZaxZiZi7W38ptsTgSn6LnEms fL5bpq4kKqk= =cpHx - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. 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/ iQIVAwUBY2MNfskNZI30y1K9AQhNeA//c2vSwo7HCgkpf+HfV3g9TWExIjpM7SiH ObV3swM+G1s6+l3wF/BjuBMpkf1VQOM7PW8bGnwQvATbqcGL7nzRpmvpU/tpENwd QSD8RSOMinSDgIwchwQ5pl8W82KGY/4UJCDy1MkV3J+16+EESFfeQLLxn8KdiMFB 4fQSmB4+fmHsB5edgrUMv8bz1Og8nI5owAoCRhMmnSb4tb2Irff+NW7E6Yu6drzo /7DR8zQbTb4hsyhmYIWLwgVf8oVpV7/+Is0GNrhtQMv1ygqCt6rR9xCr7siOvO40 SSm1r9SzkvR+we6G3AdMGZRCL+toMe/yTqSIgqP7bTOECLLetEO1239HkQkymPvI F1qHKCXO5Iu26t4FPksqBGMt1gn3NLrYdnb9G40Xbe9PkarjTXrGGDwYotoNIEwr LlKN6WTOHfOmjtEbtSDEG1R99BtJTPsYq4MesVrsKjZSaJC+WUxZPYDtMFfbW4eO sv2cAJKXfLYOvJZV1YFLKL0++KvBuzYoN1PYk/iVIFjDHFTYVNgFuFwbV+WnUHuG 7gNuLNgUq3pVm1v7IQ823E1uO3rM3hVaRDW4gE6/iDO/PpGQWjWhMSUu2gOY2uig uATQwmZK88TkEFRQIkBfTlAkADk3Xu73D4b30RJPsTYAlw5/34Qr0S4q4K4CES66 +71AgI+4UIQ= =EZyx -----END PGP SIGNATURE-----