-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2022:1555-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2022:1555 Issue date: 2022-04-26 CVE Names: CVE-2021-4028 CVE-2022-25636 ===================================================================== 1. Summary: An update for kernel-rt is now available for Red Hat Enterprise Linux 8. 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 for NFV (v. 8) - x86_64 Red Hat Enterprise Linux for Real Time (v. 8) - 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: use-after-free in RDMA listen() (CVE-2021-4028) * kernel: heap out of bounds write in nf_dup_netdev.c (CVE-2022-25636) 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 RHEL-8.5.z4 source tree (BZ#2067266) 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/): 2027201 - CVE-2021-4028 kernel: use-after-free in RDMA listen() 2056830 - CVE-2022-25636 kernel: heap out of bounds write in nf_dup_netdev.c 6. Package List: Red Hat Enterprise Linux Real Time for NFV (v. 8): Source: kernel-rt-4.18.0-348.23.1.rt7.153.el8_5.src.rpm x86_64: kernel-rt-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-core-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-debug-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-debug-core-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-debug-devel-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-debug-kvm-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-debug-modules-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-debuginfo-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-devel-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-kvm-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-modules-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-modules-extra-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm Red Hat Enterprise Linux for Real Time (v. 8): Source: kernel-rt-4.18.0-348.23.1.rt7.153.el8_5.src.rpm x86_64: kernel-rt-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-core-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-debug-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-debug-core-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-debug-devel-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-debug-modules-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-debuginfo-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-devel-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-modules-4.18.0-348.23.1.rt7.153.el8_5.x86_64.rpm kernel-rt-modules-extra-4.18.0-348.23.1.rt7.153.el8_5.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-2021-4028 https://access.redhat.com/security/cve/CVE-2022-25636 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 2022 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYmhvy9zjgjWX9erEAQiEDw/9EPHxlOOxo6wSu26pjUAmPVioEoBXNsxm xncJR+hzauUekquqgQotfBuEtZ4CUvZfsICABSy1tkgscY3EYoYPiqNdLcgMBqmV UyBaxQy7v8IABJHSzCTuYvp/jt6taZKQULj3xPtsuKPeFScJURrYmbH6x/L6Wmh+ pXvpgUaJ0SHBZaAtBxiDYBhIhenZyCwyoL+zkpknahMhNUFzDP7nB4guiM4yssi8 AIUGDwpcpk4aP9VdAf/UZOhNXjatfAXVNLNrSL5Zceh9/AxwIBiyUAEx9J/9PTlp G1erv3dt05++vmQL7j8oitxi+9gn7bTqky3riujR3Jbnoc9LdzxQZNAt+FEdzSEL srm9eu8L3VUmUIjvN+yzF+nT89wd21hgII16JKRgUIw2sVdnKIXse/ZSPTtsXgbm UNgjnzfQSmoDbxiy/8ZIBSH8OBIvy02uemNBoBG2ijZMpmaZyYr1CRSNo5umq7vN qlk3bgct0cvEb3ZTiL19932+1VYf2v+7AP052WaZdPt3B/CmXtH/KP+m2XIWOycy zwn77d+j6EsgyzreDZsdaAq+M9T4Z2tw6yaTt6qUStbUVkEiWrUhMy4MmOserBAC wnKSFU7u1SOh/Jzp2PXDDdCxu2tcfhfQPYtO0njzuWac/+7qLEZlqMMCCuli6L6g Z+kOtMd8o48= =0DuV -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce