-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2022:8974-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2022:8974 Issue date: 2022-12-13 CVE Names: CVE-2022-1158 CVE-2022-2639 CVE-2022-2959 CVE-2022-21123 CVE-2022-21125 CVE-2022-21166 CVE-2022-23816 CVE-2022-23825 CVE-2022-26373 CVE-2022-29900 CVE-2022-29901 CVE-2022-43945 ===================================================================== 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: KVM: cmpxchg_gpte can write to pfns outside the userspace region (CVE-2022-1158) * kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size() (CVE-2022-2639) * kernel: watch queue race condition can lead to privilege escalation (CVE-2022-2959) * kernel: nfsd buffer overflow by RPC message over TCP with garbage data (CVE-2022-43945) * hw: cpu: incomplete clean-up of multi-core shared buffers (aka SBDR) (CVE-2022-21123) * hw: cpu: incomplete clean-up of microarchitectural fill buffers (aka SBDS) (CVE-2022-21125) * hw: cpu: incomplete clean-up in specific special register write operations (aka DRPW) (CVE-2022-21166) * hw: cpu: AMD: RetBleed Arbitrary Speculative Code Execution with Return Instructions (CVE-2022-23816, CVE-2022-29900) * hw: cpu: AMD: Branch Type Confusion (non-retbleed) (CVE-2022-23825) * hw: cpu: Intel: Post-barrier Return Stack Buffer Predictions (CVE-2022-26373) * hw: cpu: Intel: RetBleed Arbitrary Speculative Code Execution with Return Instructions (CVE-2022-29901) 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-9.0.z5 Batch (BZ#2137580) * [DELL EMC 9.0-RT BUG] System is not booting into RT Kernel with perc12 [kernel-rt] (BZ#2139864) 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/): 2069793 - CVE-2022-1158 kernel: KVM: cmpxchg_gpte can write to pfns outside the userspace region 2084479 - CVE-2022-2639 kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size() 2090226 - CVE-2022-23816 CVE-2022-29900 hw: cpu: AMD: RetBleed Arbitrary Speculative Code Execution with Return Instructions 2090237 - CVE-2022-21123 hw: cpu: incomplete clean-up of multi-core shared buffers (aka SBDR) 2090240 - CVE-2022-21125 hw: cpu: incomplete clean-up of microarchitectural fill buffers (aka SBDS) 2090241 - CVE-2022-21166 hw: cpu: incomplete clean-up in specific special register write operations (aka DRPW) 2103148 - CVE-2022-29901 hw: cpu: Intel: RetBleed Arbitrary Speculative Code Execution with Return Instructions 2103153 - CVE-2022-23825 hw: cpu: AMD: Branch Type Confusion (non-retbleed) 2103681 - CVE-2022-2959 kernel: watch queue race condition can lead to privilege escalation 2115065 - CVE-2022-26373 hw: cpu: Intel: Post-barrier Return Stack Buffer Predictions 2141752 - CVE-2022-43945 kernel: nfsd buffer overflow by RPC message over TCP with garbage data 6. Package List: Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0): Source: kernel-rt-5.14.0-70.36.1.rt21.108.el9_0.src.rpm x86_64: kernel-rt-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-core-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-debug-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-debug-core-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-debug-debuginfo-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-debug-devel-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-debug-kvm-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-debug-modules-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-debug-modules-extra-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-debuginfo-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-debuginfo-common-x86_64-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-devel-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-kvm-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-modules-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-modules-extra-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm Red Hat Enterprise Linux Real Time EUS (v.9.0): Source: kernel-rt-5.14.0-70.36.1.rt21.108.el9_0.src.rpm x86_64: kernel-rt-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-core-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-debug-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-debug-core-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-debug-debuginfo-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-debug-devel-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-debug-modules-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-debug-modules-extra-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-debuginfo-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-debuginfo-common-x86_64-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-devel-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-modules-5.14.0-70.36.1.rt21.108.el9_0.x86_64.rpm kernel-rt-modules-extra-5.14.0-70.36.1.rt21.108.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-2022-1158 https://access.redhat.com/security/cve/CVE-2022-2639 https://access.redhat.com/security/cve/CVE-2022-2959 https://access.redhat.com/security/cve/CVE-2022-21123 https://access.redhat.com/security/cve/CVE-2022-21125 https://access.redhat.com/security/cve/CVE-2022-21166 https://access.redhat.com/security/cve/CVE-2022-23816 https://access.redhat.com/security/cve/CVE-2022-23825 https://access.redhat.com/security/cve/CVE-2022-26373 https://access.redhat.com/security/cve/CVE-2022-29900 https://access.redhat.com/security/cve/CVE-2022-29901 https://access.redhat.com/security/cve/CVE-2022-43945 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/solutions/6971358 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2022 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBY5j98NzjgjWX9erEAQgJMg//YsMeDDnxaD5147QWtdvcUXAEPUwgTclc q1S5Csnsli/lgNjEJxENBGin22RzGKBue9dl7BbKUQMTTYyrzZcnY75g7J6/tOzw UmhtxESE7Zge4ghgHtuTRpG5QEWvh73SYfFUyeIwby0QM6ONJX2nXViA88JXrnke Eggo5lSUOBjhvJZgWfx8VSCBWjshMdy7Lin0B+gGQuaQCumacHxNPNaHM/11j7bg 2PXxqjleqhD1eyGfj9W1REd4HiE+6WYKT4OS3mPDESbv7lbEVMOxGgi0dBbt6JI3 m8/bqoMh48fEAlf7H0UWw9/R/mY7zY2UMsAj10RHXMSeNr/QkNxzxNIJ7SYFU13C EKMEnUw/vS4JWET/JUgrsxu08sP9oD3IwQtPTJWTrq/mhBUdHlYjxkZADtk03XHk Y7GXVNeJe66XnJACQnlHuWtqTE6WidbM30Rc3wI0SAfx0hcYAPgoGfQWX7EFTp8s UlMyN7wd8qGbceNw6uk/k3rPcWW3EGeNw6HsUhN9eIVdRBBnlAk/i/O5ofShSYRr jctm+3T/7x04oFGJFo56wNfkyTy8W6Lj4Oxr7us7cJFJBW5l+T52re3XtIA0Uaib An7Ka+5uBvmooYnCQJyR4qnpNXB+Csdav+vOfrT5EKVvh33YlyB0O792J9EGqgSB CW+f3k/Ec3g= =3xRb -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce