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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.2321 kpatch-patch security update 8 July 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kpatch-patch Publisher: Red Hat Operating System: Red Hat Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2021-33034 Reference: ESB-2021.2262 Original Bulletin: https://access.redhat.com/errata/RHSA-2021:2668 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kpatch-patch security update Advisory ID: RHSA-2021:2668-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:2668 Issue date: 2021-07-07 CVE Names: CVE-2021-33034 ===================================================================== 1. Summary: An update is now available for Red Hat Enterprise Linux 8.1 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. 8.1) - 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: 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 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 6. Package List: Red Hat Enterprise Linux BaseOS EUS (v. 8.1): Source: kpatch-patch-4_18_0-147_24_2-1-10.el8_1.src.rpm kpatch-patch-4_18_0-147_27_1-1-10.el8_1.src.rpm kpatch-patch-4_18_0-147_32_1-1-8.el8_1.src.rpm kpatch-patch-4_18_0-147_34_1-1-8.el8_1.src.rpm kpatch-patch-4_18_0-147_38_1-1-7.el8_1.src.rpm kpatch-patch-4_18_0-147_43_1-1-5.el8_1.src.rpm kpatch-patch-4_18_0-147_44_1-1-4.el8_1.src.rpm kpatch-patch-4_18_0-147_48_1-1-1.el8_1.src.rpm ppc64le: kpatch-patch-4_18_0-147_24_2-1-10.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_24_2-debuginfo-1-10.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_24_2-debugsource-1-10.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_27_1-1-10.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_27_1-debuginfo-1-10.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_27_1-debugsource-1-10.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_32_1-1-8.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_32_1-debuginfo-1-8.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_32_1-debugsource-1-8.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_34_1-1-8.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_34_1-debuginfo-1-8.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_34_1-debugsource-1-8.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_38_1-1-7.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_38_1-debuginfo-1-7.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_38_1-debugsource-1-7.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_43_1-1-5.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_43_1-debuginfo-1-5.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_43_1-debugsource-1-5.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_44_1-1-4.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_44_1-debuginfo-1-4.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_44_1-debugsource-1-4.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_48_1-1-1.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_48_1-debuginfo-1-1.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_48_1-debugsource-1-1.el8_1.ppc64le.rpm x86_64: kpatch-patch-4_18_0-147_24_2-1-10.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_24_2-debuginfo-1-10.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_24_2-debugsource-1-10.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_27_1-1-10.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_27_1-debuginfo-1-10.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_27_1-debugsource-1-10.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_32_1-1-8.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_32_1-debuginfo-1-8.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_32_1-debugsource-1-8.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_34_1-1-8.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_34_1-debuginfo-1-8.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_34_1-debugsource-1-8.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_38_1-1-7.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_38_1-debuginfo-1-7.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_38_1-debugsource-1-7.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_43_1-1-5.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_43_1-debuginfo-1-5.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_43_1-debugsource-1-5.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_44_1-1-4.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_44_1-debuginfo-1-4.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_44_1-debugsource-1-4.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_48_1-1-1.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_48_1-debuginfo-1-1.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_48_1-debugsource-1-1.el8_1.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/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYOXAk9zjgjWX9erEAQgPrA//cUwYYXBvRGgfjH/JA7siYH7mNX2LpKwt /WAyj8c1+pMr7ORNpgImUkWil/VPAOcgDK6Js86rlzUWuA5aIt6GQf7TfEK5gIT1 omLBJT3MSS2VWlA+0ESo0FD4JOyUk8HcBHLIGcbRHVYa702k6Hc7RvsDaEKnbxv8 nzPepmqTEACHOdvOb+Fx6wCT+JCtoaXSjSrXDq5qiSTVw8YW00Rab81uzSFA9GAj WK36tFuQCDOdpgBDe+YxNwinq3PUW/XeoWHKLRcoSUEcareomZMdnsEE7BPTtk8g 4y43juK/96Qg5qpgTopt0ZyQIZvFJPpWQMxmC6wE24j4qW8o+mBDxoREAUjaBlJG Ru5Uooes5qpSAoHVzyerw4ebXfsEt8z46AjPJqh37UXS797u5ogRF9bMD1Egtnew g5sx1MyY/uwqsrneaAxo168OYwbbypLB25bsfhvKhJ4xcebCXjlkZ/BRT+YLc9j5 k/7Nk6GLf3UJRGBnBagRSxUJDCB5DZJt/pwn4Tv3b5c7PuhCI/O7lCgQg2lsns9N GijL/k/s7dY0qhzFtP9Lk1CG/aztR3qgSr4AyEMQIw94aGeH+vj7QbZR0pUG/fEZ 30Uj8uU8goUYJ8UOvns+kmCa3VEPIfNbFQjDaON31iw8GejxeWyDifPw8oawu+sr AA8lYSvAmyw= =cO0A - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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