-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2023:4821-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2023:4821 Issue date: 2023-08-29 CVE Names: CVE-2023-20593 CVE-2023-35788 ===================================================================== 1. Summary: An update for kernel-rt is now available for Red Hat Enterprise Linux 7. 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 for Real Time (v. 7) - noarch, x86_64 Red Hat Enterprise Linux for Real Time for NFV (v. 7) - noarch, 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: cls_flower: out-of-bounds write in fl_set_geneve_opt() (CVE-2023-35788) * hw: amd: Cross-Process Information Leak (CVE-2023-20593) 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 to the latest RHEL7.9.z25 source tree (BZ#2221821) 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/): 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 6. Package List: Red Hat Enterprise Linux for Real Time for NFV (v. 7): Source: kernel-rt-3.10.0-1160.99.1.rt56.1245.el7.src.rpm noarch: kernel-rt-doc-3.10.0-1160.99.1.rt56.1245.el7.noarch.rpm x86_64: kernel-rt-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-debug-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-debug-devel-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-debug-kvm-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-debug-kvm-debuginfo-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-debuginfo-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-devel-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-kvm-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-kvm-debuginfo-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-trace-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-trace-devel-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-trace-kvm-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-trace-kvm-debuginfo-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm Red Hat Enterprise Linux for Real Time (v. 7): Source: kernel-rt-3.10.0-1160.99.1.rt56.1245.el7.src.rpm noarch: kernel-rt-doc-3.10.0-1160.99.1.rt56.1245.el7.noarch.rpm x86_64: kernel-rt-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-debug-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-debug-devel-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-debuginfo-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-devel-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-trace-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-1160.99.1.rt56.1245.el7.x86_64.rpm kernel-rt-trace-devel-3.10.0-1160.99.1.rt56.1245.el7.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-2023-20593 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 iQIcBAEBCAAGBQJk7gVoAAoJENzjgjWX9erEm6QP/2QVmGI24jkS1MxcuvE2syVS +42Bvt42OTtFAtEafNQLr7UdBPpExW40RZUlQssmv375Itxx2V6Hs917I/mUli+T atpu3OhLIiXEzlZ0w4TQO6mQTAM0jaDQHuieVFngyuyrfgGz5A2RqxP1c9fKn38o VfN84ADc+Q+dX2xDPaCk7JgmFFoderXEO1J2xlILwHEqRhP6zvso0Owwl/KFcl7l nbRI8S2s2i7BSTlvuzY0QhH/aPTadfzdzDbmn0z/Ji3Nxa3zocbc0n/YP9SIlp7e ScWCiAmUKqv/gX+hms3OFdvKKwnAYcWBAFjd6MZ3JbcgUVC/YlTX/cd7GO7c3ojd OumwLsB/Ief5S2H0OYPSlOdPoa169/MKX0DNkVbQ1anpWleS+YSNvMGAb5vevVq/ Ls6qiQmw4scG5RGT+G2upadQ4jJUFtCA+E85OuqYK1QTABp7SItDjfGWyvA3f7lw jgAdeTt26Q9XP43vnWt+rUfVmVkyGxziPC3YLtXv8gHUy6qjqe9DDZ767ZMFfX+F 1hjZk3oU4FWCRMR0NVElJ4zoKI4H5FG27huBkwwEhnrKPgPDrbiBhw3tGOVvykUC NI+z0JkxE7trw5aWD+oRrmlY2kjkvq6EY6N9WYrCWxed1I8fr/9HRzznvDPhkqTz Inx1e5emUPqIxpyWqTgF =Fdo0 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce