-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel security update Advisory ID: RHSA-2021:2728-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:2728 Issue date: 2021-07-20 CVE Names: CVE-2021-33034 CVE-2021-33909 ==================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 7.7 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 ComputeNode EUS (v. 7.7) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) - x86_64 Red Hat Enterprise Linux Server EUS (v. 7.7) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 7.7) - ppc64, ppc64le, 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) 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. 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/): 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 ComputeNode EUS (v. 7.7): Source: kernel-3.10.0-1062.52.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1062.52.2.el7.noarch.rpm kernel-doc-3.10.0-1062.52.2.el7.noarch.rpm x86_64: bpftool-3.10.0-1062.52.2.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm kernel-3.10.0-1062.52.2.el7.x86_64.rpm kernel-debug-3.10.0-1062.52.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-1062.52.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1062.52.2.el7.x86_64.rpm kernel-devel-3.10.0-1062.52.2.el7.x86_64.rpm kernel-headers-3.10.0-1062.52.2.el7.x86_64.rpm kernel-tools-3.10.0-1062.52.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-1062.52.2.el7.x86_64.rpm perf-3.10.0-1062.52.2.el7.x86_64.rpm perf-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm python-perf-3.10.0-1062.52.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7): x86_64: bpftool-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1062.52.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1062.52.2.el7.x86_64.rpm perf-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm Red Hat Enterprise Linux Server EUS (v. 7.7): Source: kernel-3.10.0-1062.52.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1062.52.2.el7.noarch.rpm kernel-doc-3.10.0-1062.52.2.el7.noarch.rpm ppc64: bpftool-3.10.0-1062.52.2.el7.ppc64.rpm bpftool-debuginfo-3.10.0-1062.52.2.el7.ppc64.rpm kernel-3.10.0-1062.52.2.el7.ppc64.rpm kernel-bootwrapper-3.10.0-1062.52.2.el7.ppc64.rpm kernel-debug-3.10.0-1062.52.2.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-1062.52.2.el7.ppc64.rpm kernel-debug-devel-3.10.0-1062.52.2.el7.ppc64.rpm kernel-debuginfo-3.10.0-1062.52.2.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-1062.52.2.el7.ppc64.rpm kernel-devel-3.10.0-1062.52.2.el7.ppc64.rpm kernel-headers-3.10.0-1062.52.2.el7.ppc64.rpm kernel-tools-3.10.0-1062.52.2.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-1062.52.2.el7.ppc64.rpm kernel-tools-libs-3.10.0-1062.52.2.el7.ppc64.rpm perf-3.10.0-1062.52.2.el7.ppc64.rpm perf-debuginfo-3.10.0-1062.52.2.el7.ppc64.rpm python-perf-3.10.0-1062.52.2.el7.ppc64.rpm python-perf-debuginfo-3.10.0-1062.52.2.el7.ppc64.rpm ppc64le: bpftool-3.10.0-1062.52.2.el7.ppc64le.rpm bpftool-debuginfo-3.10.0-1062.52.2.el7.ppc64le.rpm kernel-3.10.0-1062.52.2.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-1062.52.2.el7.ppc64le.rpm kernel-debug-3.10.0-1062.52.2.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-1062.52.2.el7.ppc64le.rpm kernel-debuginfo-3.10.0-1062.52.2.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-1062.52.2.el7.ppc64le.rpm kernel-devel-3.10.0-1062.52.2.el7.ppc64le.rpm kernel-headers-3.10.0-1062.52.2.el7.ppc64le.rpm kernel-tools-3.10.0-1062.52.2.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-1062.52.2.el7.ppc64le.rpm kernel-tools-libs-3.10.0-1062.52.2.el7.ppc64le.rpm perf-3.10.0-1062.52.2.el7.ppc64le.rpm perf-debuginfo-3.10.0-1062.52.2.el7.ppc64le.rpm python-perf-3.10.0-1062.52.2.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-1062.52.2.el7.ppc64le.rpm s390x: bpftool-3.10.0-1062.52.2.el7.s390x.rpm bpftool-debuginfo-3.10.0-1062.52.2.el7.s390x.rpm kernel-3.10.0-1062.52.2.el7.s390x.rpm kernel-debug-3.10.0-1062.52.2.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-1062.52.2.el7.s390x.rpm kernel-debug-devel-3.10.0-1062.52.2.el7.s390x.rpm kernel-debuginfo-3.10.0-1062.52.2.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-1062.52.2.el7.s390x.rpm kernel-devel-3.10.0-1062.52.2.el7.s390x.rpm kernel-headers-3.10.0-1062.52.2.el7.s390x.rpm kernel-kdump-3.10.0-1062.52.2.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-1062.52.2.el7.s390x.rpm kernel-kdump-devel-3.10.0-1062.52.2.el7.s390x.rpm perf-3.10.0-1062.52.2.el7.s390x.rpm perf-debuginfo-3.10.0-1062.52.2.el7.s390x.rpm python-perf-3.10.0-1062.52.2.el7.s390x.rpm python-perf-debuginfo-3.10.0-1062.52.2.el7.s390x.rpm x86_64: bpftool-3.10.0-1062.52.2.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm kernel-3.10.0-1062.52.2.el7.x86_64.rpm kernel-debug-3.10.0-1062.52.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-1062.52.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1062.52.2.el7.x86_64.rpm kernel-devel-3.10.0-1062.52.2.el7.x86_64.rpm kernel-headers-3.10.0-1062.52.2.el7.x86_64.rpm kernel-tools-3.10.0-1062.52.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-1062.52.2.el7.x86_64.rpm perf-3.10.0-1062.52.2.el7.x86_64.rpm perf-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm python-perf-3.10.0-1062.52.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional EUS (v. 7.7): ppc64: bpftool-debuginfo-3.10.0-1062.52.2.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-1062.52.2.el7.ppc64.rpm kernel-debuginfo-3.10.0-1062.52.2.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-1062.52.2.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-1062.52.2.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-1062.52.2.el7.ppc64.rpm perf-debuginfo-3.10.0-1062.52.2.el7.ppc64.rpm python-perf-debuginfo-3.10.0-1062.52.2.el7.ppc64.rpm ppc64le: bpftool-debuginfo-3.10.0-1062.52.2.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-1062.52.2.el7.ppc64le.rpm kernel-debug-devel-3.10.0-1062.52.2.el7.ppc64le.rpm kernel-debuginfo-3.10.0-1062.52.2.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-1062.52.2.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-1062.52.2.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-1062.52.2.el7.ppc64le.rpm perf-debuginfo-3.10.0-1062.52.2.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-1062.52.2.el7.ppc64le.rpm x86_64: bpftool-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1062.52.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1062.52.2.el7.x86_64.rpm perf-debuginfo-3.10.0-1062.52.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1062.52.2.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-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 iQIVAwUBYPd0n9zjgjWX9erEAQjyFw//eZFbE4Q7HT2jtEnBnQcFcGFOiMZoW03y uGpduhJPgVG5AOwzajmfkkSZyKdeY7YysC8U6BoGASR8cAPH3kNkZ7qmOj3d8pGg wHbh3Gz56SEurZTFIorFC9bZ0vV7sEMrglC3IdAqWAskGUIpK+B+nfY0Y9G1SQ4p EgDwgVMHUzEW/0devQxHRX9CdZqX7LqEVOaDDQxcrQhNItnCT909HJkDKqgzlAMs L0b0be5/kUn7u+az1Jf5tca++2UCiCgAOM0LRfpLEl7GnLu0or+0mXWJCNGc8roh +V4qelfr0bTxAvt29/uh6jvIQyV5RBu0IWSaDcZHVkCSEKcjXGkej8V7f6fCNpON tmVqJOLUQ2revoMu71JZNhHPSgPmTxizn26qmo/dhLv3P8/c94oJX0TluTl7jugu IwcjqxsJlmr2ecYckIQ8t9vx5/2F3Dv5eg7iBNI8jHxyRutnp9wrDagjs7p0okfk M112IawtnXaJs4+Qh3SWxgdXDZfJlmwF4FKZlaiKj13Suea+rHjoAtykSCJKp77G P8FDudRFpc6w4ORaupsX5cJu7ojyfVgWZpbAOMFDh/N8bn/TdG4HM5Ni4gWIoXJ3 f4QsD9oLsBemb5WQNIjio7L1WkyN5masSFEH0g5voaVmDm+rSg26m5T8U/HTyq0l hgJo2YKtOhs=Pa6j -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce