-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2021:2718-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:2718 Issue date: 2021-07-20 CVE Names: CVE-2020-25704 CVE-2020-26541 CVE-2020-35508 CVE-2021-33034 CVE-2021-33909 ==================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 8.2 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 CodeReady Linux Builder EUS (v. 8.2) - aarch64, ppc64le, x86_64 Red Hat Enterprise Linux BaseOS EUS (v. 8.2) - aarch64, noarch, ppc64le, s390x, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: size_t-to-int conversion vulnerability in the filesystem layer (CVE-2021-33909) * kernel: use-after-free in net/bluetooth/hci_event.c when destroying an hci_chan (CVE-2021-33034) * kernel: perf_event_parse_addr_filter memory (CVE-2020-25704) * kernel: security bypass in certs/blacklist.c and certs/system_keyring.c (CVE-2020-26541) * kernel: fork: fix copy_process(CLONE_PARENT) race with the exiting - ->real_parent (CVE-2020-35508) 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): * RHEL8.2 Snapshot2 - tpm: ibmvtpm: Wait for buffer to be set before proceeding (BZ#1933986) * fnic crash from invalid request pointer (BZ#1961707) * [Azure][RHEL8.4] Two Patches Needed To Enable Azure Host Time-syncing in VMs (BZ#1963051) * RHEL kernel 8.2 and higher are affected by data corruption bug in raid1 arrays using bitmaps. (BZ#1969338) 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/): 1886285 - CVE-2020-26541 kernel: security bypass in certs/blacklist.c and certs/system_keyring.c 1895961 - CVE-2020-25704 kernel: perf_event_parse_addr_filter memory 1902724 - CVE-2020-35508 kernel: fork: fix copy_process(CLONE_PARENT) race with the exiting ->real_parent 1961305 - CVE-2021-33034 kernel: use-after-free in net/bluetooth/hci_event.c when destroying an hci_chan 1970273 - CVE-2021-33909 kernel: size_t-to-int conversion vulnerability in the filesystem layer 6. Package List: Red Hat Enterprise Linux BaseOS EUS (v. 8.2): Source: kernel-4.18.0-193.60.2.el8_2.src.rpm aarch64: bpftool-4.18.0-193.60.2.el8_2.aarch64.rpm bpftool-debuginfo-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-core-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-cross-headers-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-debug-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-debug-core-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-debug-debuginfo-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-debug-devel-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-debug-modules-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-debug-modules-extra-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-debuginfo-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-devel-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-headers-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-modules-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-modules-extra-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-tools-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-tools-debuginfo-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-tools-libs-4.18.0-193.60.2.el8_2.aarch64.rpm perf-4.18.0-193.60.2.el8_2.aarch64.rpm perf-debuginfo-4.18.0-193.60.2.el8_2.aarch64.rpm python3-perf-4.18.0-193.60.2.el8_2.aarch64.rpm python3-perf-debuginfo-4.18.0-193.60.2.el8_2.aarch64.rpm noarch: kernel-abi-whitelists-4.18.0-193.60.2.el8_2.noarch.rpm kernel-doc-4.18.0-193.60.2.el8_2.noarch.rpm ppc64le: bpftool-4.18.0-193.60.2.el8_2.ppc64le.rpm bpftool-debuginfo-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-core-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-cross-headers-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-debug-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-debug-core-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-debug-debuginfo-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-debug-devel-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-debug-modules-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-debug-modules-extra-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-debuginfo-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-devel-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-headers-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-modules-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-modules-extra-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-tools-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-tools-debuginfo-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-tools-libs-4.18.0-193.60.2.el8_2.ppc64le.rpm perf-4.18.0-193.60.2.el8_2.ppc64le.rpm perf-debuginfo-4.18.0-193.60.2.el8_2.ppc64le.rpm python3-perf-4.18.0-193.60.2.el8_2.ppc64le.rpm python3-perf-debuginfo-4.18.0-193.60.2.el8_2.ppc64le.rpm s390x: bpftool-4.18.0-193.60.2.el8_2.s390x.rpm bpftool-debuginfo-4.18.0-193.60.2.el8_2.s390x.rpm kernel-4.18.0-193.60.2.el8_2.s390x.rpm kernel-core-4.18.0-193.60.2.el8_2.s390x.rpm kernel-cross-headers-4.18.0-193.60.2.el8_2.s390x.rpm kernel-debug-4.18.0-193.60.2.el8_2.s390x.rpm kernel-debug-core-4.18.0-193.60.2.el8_2.s390x.rpm kernel-debug-debuginfo-4.18.0-193.60.2.el8_2.s390x.rpm kernel-debug-devel-4.18.0-193.60.2.el8_2.s390x.rpm kernel-debug-modules-4.18.0-193.60.2.el8_2.s390x.rpm kernel-debug-modules-extra-4.18.0-193.60.2.el8_2.s390x.rpm kernel-debuginfo-4.18.0-193.60.2.el8_2.s390x.rpm kernel-debuginfo-common-s390x-4.18.0-193.60.2.el8_2.s390x.rpm kernel-devel-4.18.0-193.60.2.el8_2.s390x.rpm kernel-headers-4.18.0-193.60.2.el8_2.s390x.rpm kernel-modules-4.18.0-193.60.2.el8_2.s390x.rpm kernel-modules-extra-4.18.0-193.60.2.el8_2.s390x.rpm kernel-tools-4.18.0-193.60.2.el8_2.s390x.rpm kernel-tools-debuginfo-4.18.0-193.60.2.el8_2.s390x.rpm kernel-zfcpdump-4.18.0-193.60.2.el8_2.s390x.rpm kernel-zfcpdump-core-4.18.0-193.60.2.el8_2.s390x.rpm kernel-zfcpdump-debuginfo-4.18.0-193.60.2.el8_2.s390x.rpm kernel-zfcpdump-devel-4.18.0-193.60.2.el8_2.s390x.rpm kernel-zfcpdump-modules-4.18.0-193.60.2.el8_2.s390x.rpm kernel-zfcpdump-modules-extra-4.18.0-193.60.2.el8_2.s390x.rpm perf-4.18.0-193.60.2.el8_2.s390x.rpm perf-debuginfo-4.18.0-193.60.2.el8_2.s390x.rpm python3-perf-4.18.0-193.60.2.el8_2.s390x.rpm python3-perf-debuginfo-4.18.0-193.60.2.el8_2.s390x.rpm x86_64: bpftool-4.18.0-193.60.2.el8_2.x86_64.rpm bpftool-debuginfo-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-core-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-cross-headers-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-debug-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-debug-core-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-debug-debuginfo-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-debug-devel-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-debug-modules-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-debug-modules-extra-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-debuginfo-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-debuginfo-common-x86_64-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-devel-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-headers-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-modules-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-modules-extra-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-tools-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-tools-debuginfo-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-tools-libs-4.18.0-193.60.2.el8_2.x86_64.rpm perf-4.18.0-193.60.2.el8_2.x86_64.rpm perf-debuginfo-4.18.0-193.60.2.el8_2.x86_64.rpm python3-perf-4.18.0-193.60.2.el8_2.x86_64.rpm python3-perf-debuginfo-4.18.0-193.60.2.el8_2.x86_64.rpm Red Hat CodeReady Linux Builder EUS (v. 8.2): aarch64: bpftool-debuginfo-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-debug-debuginfo-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-debuginfo-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-tools-debuginfo-4.18.0-193.60.2.el8_2.aarch64.rpm kernel-tools-libs-devel-4.18.0-193.60.2.el8_2.aarch64.rpm perf-debuginfo-4.18.0-193.60.2.el8_2.aarch64.rpm python3-perf-debuginfo-4.18.0-193.60.2.el8_2.aarch64.rpm ppc64le: bpftool-debuginfo-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-debug-debuginfo-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-debuginfo-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-tools-debuginfo-4.18.0-193.60.2.el8_2.ppc64le.rpm kernel-tools-libs-devel-4.18.0-193.60.2.el8_2.ppc64le.rpm perf-debuginfo-4.18.0-193.60.2.el8_2.ppc64le.rpm python3-perf-debuginfo-4.18.0-193.60.2.el8_2.ppc64le.rpm x86_64: bpftool-debuginfo-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-debug-debuginfo-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-debuginfo-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-debuginfo-common-x86_64-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-tools-debuginfo-4.18.0-193.60.2.el8_2.x86_64.rpm kernel-tools-libs-devel-4.18.0-193.60.2.el8_2.x86_64.rpm perf-debuginfo-4.18.0-193.60.2.el8_2.x86_64.rpm python3-perf-debuginfo-4.18.0-193.60.2.el8_2.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-2020-25704 https://access.redhat.com/security/cve/CVE-2020-26541 https://access.redhat.com/security/cve/CVE-2020-35508 https://access.redhat.com/security/cve/CVE-2021-33034 https://access.redhat.com/security/cve/CVE-2021-33909 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/RHSB-2021-006 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYPdKddzjgjWX9erEAQhLHw/8CtsaptRIaXpqaAqj2dZCzmPJHC8iyNOj 5dmUgyNRCwyoUVIXRtGr4TBR+Bxi0Y37ofV1bAdK7igPDppxmbEANIR4NhOaktf3 w17HflEhh8us5fmTxYNlRa2++UIvuWBGfH4+kfODkSDCBgbb9Q2xIxPRXWQRvLjr ide7SRs9zF31KYoat9kWWDhMSZDitVlU2wvWsx1j40UD6a1sUx9M2Q/cCbcu8NSO 9kyVxyOhDHs72sbOLsbiwfDAYKmUjdkDVBY+5Rl2DbtxIz0jZOWSbHvhsu6ndpN4 iKxbcHVrfpMjQAX4KnDYIKB8PPHXzRcbQLRGSZWpAdGmPc/H+3vGTAXZJSDIi/61 +9OXWRn9PSkAR3WFNOPo1rru5WI7cncykx8jm5sCwzcnBGsgz+E8Exwf+MObnOqx OVMnSwU52kFdyDciwlXobjGtEdEMN/Jf/f+dM1KIJxj8YTgygzJQw/Z3fWeI/gvh fcqSeFjAN3+A+aVXn8NcaBPIEjAqdwEA9kvT8JxGo8co1KzmHxCZVpxnECYSsQuW qttiF50ohXwLbYklFG8Mt0pD04HmnsmLUvFZYK2m9MSfUsz4dFjgDnov8p7btGgu yJ/6Aul7C6TjZZvQG9fz6Id+mh4uPPMvQrVSQLrl68bOWpphyoRqzcTTFNFj1g+w gIkv6r9Alj4=hVNH -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce