-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2023:3470-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2023:3470 Issue date: 2023-06-06 CVE Names: CVE-2023-0461 CVE-2023-2008 CVE-2023-32233 ===================================================================== 1. Summary: An update for kernel-rt is now available for Red Hat Enterprise Linux 9.0 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.9.0) - x86_64 Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0) - 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: net/ulp: use-after-free in listening ULP sockets (CVE-2023-0461) * kernel: udmabuf: improper validation of array index leading to local privilege escalation (CVE-2023-2008) * kernel: netfilter: use-after-free in nf_tables when processing batch requests can lead to privilege escalation (CVE-2023-32233) 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-debug: BUG: MAX_LOCKDEP_CHAINS too low (BZ#2181286) * kernel-rt: update RT source tree to the latest RHEL-9.0.z9 Batch (BZ#2186491) * kernel-rt: INFO: task deadline_test:1778 blocked for more than 622 seconds (BZ#2188662) 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/): 2176192 - CVE-2023-0461 kernel: net/ulp: use-after-free in listening ULP sockets 2186862 - CVE-2023-2008 kernel: udmabuf: improper validation of array index leading to local privilege escalation 2196105 - CVE-2023-32233 kernel: netfilter: use-after-free in nf_tables when processing batch requests can lead to privilege escalation 6. Package List: Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0): Source: kernel-rt-5.14.0-70.58.1.rt21.129.el9_0.src.rpm x86_64: kernel-rt-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-core-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-debug-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-debug-core-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-debug-debuginfo-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-debug-devel-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-debug-kvm-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-debug-modules-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-debug-modules-extra-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-debuginfo-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-debuginfo-common-x86_64-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-devel-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-kvm-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-modules-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-modules-extra-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm Red Hat Enterprise Linux Real Time EUS (v.9.0): Source: kernel-rt-5.14.0-70.58.1.rt21.129.el9_0.src.rpm x86_64: kernel-rt-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-core-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-debug-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-debug-core-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-debug-debuginfo-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-debug-devel-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-debug-modules-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-debug-modules-extra-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-debuginfo-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-debuginfo-common-x86_64-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-devel-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-modules-5.14.0-70.58.1.rt21.129.el9_0.x86_64.rpm kernel-rt-modules-extra-5.14.0-70.58.1.rt21.129.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-2023-0461 https://access.redhat.com/security/cve/CVE-2023-2008 https://access.redhat.com/security/cve/CVE-2023-32233 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 iQIVAwUBZH8fc9zjgjWX9erEAQixqg//TKjSUs6S1BZfD0fAMLRlETm8X+zQSko2 /0J2pHxC77zfwa4Tdf0vgCx9WDOzrZE8OQwPU7rchBIRLd/3LZyaVpw88ujtkO7z gmTE1EVBOrNrQF4UsZvvI1DhIIjHJTgyA0YZu6k3SnSJ3WCVLJvZoiFMMFJwE3BT qFZUe78WC/KwSM2sNsnyPiHEbkv5sIU/nCpHdf0CuriSNaOmf8vYhB5lO4w5+D3G pe4ebCa/urh0PRY9XAvlcneN6JhAhrGKerdx2U3M1JV2xLUi6GEiTUabQwaWsIeP pTOMQ13b2+0Dx2yGjNVGb4BiNczq1J+4xC2Y6agGhsrEjS25cTs/+VUIU7u55Z6v ekZXQqqszCWpmzbFtsPB2piRVswywCcv5C3H+PjIkwtb/ZXt6s0wf15EXubp70Pk nxWMI3bDuZKWGqV4QJ0WjCyv9ZrZ07Z/tz/x5+G7W8dsz5NYOd57QWVOH1N8abJe 0BAn/wxLiovVp8SVXvFhv62HgD0jwWCm/2Qnnk8vUpz14o4WDhazki2n240fG/to Gf4V9+u59QhSJoqm15Wn8TdagXGtAJpoF4035uxIsDc6qitqfgUdr+/QKdS1DHbw dteCG6cCVXKsdiAP5sLoZc1TLIL7rsW24mKemHx/WA97wYdyfOq1lUR5YyvcZupy uaJN7YNDHbs= =rdIS -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce