-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kpatch-patch security update Advisory ID: RHSA-2021:3380-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:3380 Issue date: 2021-08-31 CVE Names: CVE-2021-3609 CVE-2021-22543 CVE-2021-22555 CVE-2021-32399 ===================================================================== 1. Summary: An update 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 Enterprise Linux BaseOS EUS (v. 8.2) - ppc64le, x86_64 3. Description: This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Security Fix(es): * kernel: race condition in net/can/bcm.c leads to local privilege escalation (CVE-2021-3609) * kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543) * kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c (CVE-2021-22555) * kernel: race condition for removal of the HCI controller (CVE-2021-32399) 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 5. Bugs fixed (https://bugzilla.redhat.com/): 1965461 - CVE-2021-22543 kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks 1970807 - CVE-2021-32399 kernel: race condition for removal of the HCI controller 1971651 - CVE-2021-3609 kernel: race condition in net/can/bcm.c leads to local privilege escalation 1980101 - CVE-2021-22555 kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c 6. Package List: Red Hat Enterprise Linux BaseOS EUS (v. 8.2): Source: kpatch-patch-4_18_0-193_19_1-1-11.el8_2.src.rpm kpatch-patch-4_18_0-193_28_1-1-9.el8_2.src.rpm kpatch-patch-4_18_0-193_29_1-1-9.el8_2.src.rpm kpatch-patch-4_18_0-193_37_1-1-9.el8_2.src.rpm kpatch-patch-4_18_0-193_40_1-1-9.el8_2.src.rpm kpatch-patch-4_18_0-193_41_1-1-9.el8_2.src.rpm kpatch-patch-4_18_0-193_46_1-1-6.el8_2.src.rpm kpatch-patch-4_18_0-193_47_1-1-6.el8_2.src.rpm kpatch-patch-4_18_0-193_51_1-1-3.el8_2.src.rpm kpatch-patch-4_18_0-193_56_1-1-2.el8_2.src.rpm kpatch-patch-4_18_0-193_60_2-1-1.el8_2.src.rpm ppc64le: kpatch-patch-4_18_0-193_19_1-1-11.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_19_1-debuginfo-1-11.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_19_1-debugsource-1-11.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_28_1-1-9.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_28_1-debuginfo-1-9.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_28_1-debugsource-1-9.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_29_1-1-9.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_29_1-debuginfo-1-9.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_29_1-debugsource-1-9.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_37_1-1-9.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_37_1-debuginfo-1-9.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_37_1-debugsource-1-9.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_40_1-1-9.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_40_1-debuginfo-1-9.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_40_1-debugsource-1-9.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_41_1-1-9.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_41_1-debuginfo-1-9.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_41_1-debugsource-1-9.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_46_1-1-6.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_46_1-debuginfo-1-6.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_46_1-debugsource-1-6.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_47_1-1-6.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_47_1-debuginfo-1-6.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_47_1-debugsource-1-6.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_51_1-1-3.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_51_1-debuginfo-1-3.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_51_1-debugsource-1-3.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_56_1-1-2.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_56_1-debuginfo-1-2.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_56_1-debugsource-1-2.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_60_2-1-1.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_60_2-debuginfo-1-1.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_60_2-debugsource-1-1.el8_2.ppc64le.rpm x86_64: kpatch-patch-4_18_0-193_19_1-1-11.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_19_1-debuginfo-1-11.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_19_1-debugsource-1-11.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_28_1-1-9.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_28_1-debuginfo-1-9.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_28_1-debugsource-1-9.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_29_1-1-9.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_29_1-debuginfo-1-9.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_29_1-debugsource-1-9.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_37_1-1-9.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_37_1-debuginfo-1-9.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_37_1-debugsource-1-9.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_40_1-1-9.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_40_1-debuginfo-1-9.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_40_1-debugsource-1-9.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_41_1-1-9.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_41_1-debuginfo-1-9.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_41_1-debugsource-1-9.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_46_1-1-6.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_46_1-debuginfo-1-6.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_46_1-debugsource-1-6.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_47_1-1-6.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_47_1-debuginfo-1-6.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_47_1-debugsource-1-6.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_51_1-1-3.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_51_1-debuginfo-1-3.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_51_1-debugsource-1-3.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_56_1-1-2.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_56_1-debuginfo-1-2.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_56_1-debugsource-1-2.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_60_2-1-1.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_60_2-debuginfo-1-1.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_60_2-debugsource-1-1.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-2021-3609 https://access.redhat.com/security/cve/CVE-2021-22543 https://access.redhat.com/security/cve/CVE-2021-22555 https://access.redhat.com/security/cve/CVE-2021-32399 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 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYS3xBtzjgjWX9erEAQgl5w/9GMNPgtrs19lghz8Z63SM2GQOpF5aNqhk RPDZKMz6ai2zz3JvH8QDMtAkWUUIM6wjqH7frERcJ6gEn8chPnG8dYtECiJnqBsn gWa2yb/Dg802kR3Y0PxJTUsri36ikbXszN38NKN8LmT6Dd8YREUXZ/g6HKHEZxSB ed7AsaUnGpN04BrXXXOdiUmBAr2mPBU5bfFHeRLo2aNF1YolItJaOVpiSA771out n8p3WQywat1/wCe3yaERLS//9SjKhHHYR6e/tjG/gwQ1AE6JWyT7EFWFF6e4KVUf 5j5YIMiiksCwJROTNdLpnpuVFrSwEXbNvhvnoftyqQ4xVItqdJl+pk0+Y14rO042 NCq3HXqhn718QQjRD/AgdBcFpgNb5KAv2IopA7Ja3KUtRG93/+/7bNWWJ3oKQzpf 7Fx8IIR/VVAv+alxQTs1M2X6qeLC+E9gIbMBbBQ+qjYn249lY6ZO/vgQ2HBrQCpM B7bW0dG7LlDUO4ank2eTZZdOzCeAYAjdZmaVkFizsk6OZA3vS43LfgaNh5lZtuZb o3R9wZIQ8+1xCQyuXt8yTSU1WNx1x1WO0Mvf0YVlTAjAafiMlaAAEkdxpxBpyQwA 841aQQQq0IXWo/vmmsN4+kwwN7P+PDUz3kbjzENHLMUqBViQzCYcZgUpp7eyW32s nVSvD3VJeBo= =4DNH -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce