-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2021:0686-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:0686 Issue date: 2021-03-02 CVE Names: CVE-2020-0444 CVE-2020-14351 CVE-2020-25705 CVE-2020-29661 ===================================================================== 1. Summary: An update for kernel 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 CodeReady Linux Builder EUS (v. 8.1) - aarch64, ppc64le, x86_64 Red Hat Enterprise Linux BaseOS EUS (v. 8.1) - 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: bad kfree in auditfilter.c may lead to escalation of privilege (CVE-2020-0444) * kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free (CVE-2020-29661) * kernel: performance counters race condition use-after-free (CVE-2020-14351) * kernel: ICMP rate limiting can be used for DNS poisoning attack (CVE-2020-25705) 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): * [Hyper-V][RHEL-8] Request to included a commit that adds a timeout to vmbus_wait_for_unload (BZ#1913530) * [CKI kernel builds]: x86 binaries in non-x86 kernel rpms breaks systemtap (BZ#1929908) * rpmbuild cannot build the userspace RPMs in the kernel package when the kernel itself is not built (BZ#1929912) 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/): 1862849 - CVE-2020-14351 kernel: performance counters race condition use-after-free 1894579 - CVE-2020-25705 kernel: ICMP rate limiting can be used for DNS poisoning attack 1906525 - CVE-2020-29661 kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free 1920474 - CVE-2020-0444 kernel: bad kfree in auditfilter.c may lead to escalation of privilege 6. Package List: Red Hat Enterprise Linux BaseOS EUS (v. 8.1): Source: kernel-4.18.0-147.43.1.el8_1.src.rpm aarch64: bpftool-4.18.0-147.43.1.el8_1.aarch64.rpm bpftool-debuginfo-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-core-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-cross-headers-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-debug-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-debug-core-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-debug-debuginfo-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-debug-devel-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-debug-modules-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-debug-modules-extra-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-debuginfo-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-devel-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-headers-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-modules-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-modules-extra-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-tools-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-tools-debuginfo-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-tools-libs-4.18.0-147.43.1.el8_1.aarch64.rpm perf-4.18.0-147.43.1.el8_1.aarch64.rpm perf-debuginfo-4.18.0-147.43.1.el8_1.aarch64.rpm python3-perf-4.18.0-147.43.1.el8_1.aarch64.rpm python3-perf-debuginfo-4.18.0-147.43.1.el8_1.aarch64.rpm noarch: kernel-abi-whitelists-4.18.0-147.43.1.el8_1.noarch.rpm kernel-doc-4.18.0-147.43.1.el8_1.noarch.rpm ppc64le: bpftool-4.18.0-147.43.1.el8_1.ppc64le.rpm bpftool-debuginfo-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-core-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-cross-headers-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-debug-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-debug-core-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-debug-debuginfo-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-debug-devel-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-debug-modules-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-debug-modules-extra-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-debuginfo-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-devel-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-headers-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-modules-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-modules-extra-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-tools-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-tools-debuginfo-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-tools-libs-4.18.0-147.43.1.el8_1.ppc64le.rpm perf-4.18.0-147.43.1.el8_1.ppc64le.rpm perf-debuginfo-4.18.0-147.43.1.el8_1.ppc64le.rpm python3-perf-4.18.0-147.43.1.el8_1.ppc64le.rpm python3-perf-debuginfo-4.18.0-147.43.1.el8_1.ppc64le.rpm s390x: bpftool-4.18.0-147.43.1.el8_1.s390x.rpm bpftool-debuginfo-4.18.0-147.43.1.el8_1.s390x.rpm kernel-4.18.0-147.43.1.el8_1.s390x.rpm kernel-core-4.18.0-147.43.1.el8_1.s390x.rpm kernel-cross-headers-4.18.0-147.43.1.el8_1.s390x.rpm kernel-debug-4.18.0-147.43.1.el8_1.s390x.rpm kernel-debug-core-4.18.0-147.43.1.el8_1.s390x.rpm kernel-debug-debuginfo-4.18.0-147.43.1.el8_1.s390x.rpm kernel-debug-devel-4.18.0-147.43.1.el8_1.s390x.rpm kernel-debug-modules-4.18.0-147.43.1.el8_1.s390x.rpm kernel-debug-modules-extra-4.18.0-147.43.1.el8_1.s390x.rpm kernel-debuginfo-4.18.0-147.43.1.el8_1.s390x.rpm kernel-debuginfo-common-s390x-4.18.0-147.43.1.el8_1.s390x.rpm kernel-devel-4.18.0-147.43.1.el8_1.s390x.rpm kernel-headers-4.18.0-147.43.1.el8_1.s390x.rpm kernel-modules-4.18.0-147.43.1.el8_1.s390x.rpm kernel-modules-extra-4.18.0-147.43.1.el8_1.s390x.rpm kernel-tools-4.18.0-147.43.1.el8_1.s390x.rpm kernel-tools-debuginfo-4.18.0-147.43.1.el8_1.s390x.rpm kernel-zfcpdump-4.18.0-147.43.1.el8_1.s390x.rpm kernel-zfcpdump-core-4.18.0-147.43.1.el8_1.s390x.rpm kernel-zfcpdump-debuginfo-4.18.0-147.43.1.el8_1.s390x.rpm kernel-zfcpdump-devel-4.18.0-147.43.1.el8_1.s390x.rpm kernel-zfcpdump-modules-4.18.0-147.43.1.el8_1.s390x.rpm kernel-zfcpdump-modules-extra-4.18.0-147.43.1.el8_1.s390x.rpm perf-4.18.0-147.43.1.el8_1.s390x.rpm perf-debuginfo-4.18.0-147.43.1.el8_1.s390x.rpm python3-perf-4.18.0-147.43.1.el8_1.s390x.rpm python3-perf-debuginfo-4.18.0-147.43.1.el8_1.s390x.rpm x86_64: bpftool-4.18.0-147.43.1.el8_1.x86_64.rpm bpftool-debuginfo-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-core-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-cross-headers-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-debug-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-debug-core-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-debug-debuginfo-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-debug-devel-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-debug-modules-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-debug-modules-extra-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-debuginfo-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-debuginfo-common-x86_64-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-devel-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-headers-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-modules-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-modules-extra-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-tools-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-tools-debuginfo-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-tools-libs-4.18.0-147.43.1.el8_1.x86_64.rpm perf-4.18.0-147.43.1.el8_1.x86_64.rpm perf-debuginfo-4.18.0-147.43.1.el8_1.x86_64.rpm python3-perf-4.18.0-147.43.1.el8_1.x86_64.rpm python3-perf-debuginfo-4.18.0-147.43.1.el8_1.x86_64.rpm Red Hat CodeReady Linux Builder EUS (v. 8.1): aarch64: bpftool-debuginfo-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-debug-debuginfo-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-debuginfo-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-tools-debuginfo-4.18.0-147.43.1.el8_1.aarch64.rpm kernel-tools-libs-devel-4.18.0-147.43.1.el8_1.aarch64.rpm perf-debuginfo-4.18.0-147.43.1.el8_1.aarch64.rpm python3-perf-debuginfo-4.18.0-147.43.1.el8_1.aarch64.rpm ppc64le: bpftool-debuginfo-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-debug-debuginfo-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-debuginfo-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-tools-debuginfo-4.18.0-147.43.1.el8_1.ppc64le.rpm kernel-tools-libs-devel-4.18.0-147.43.1.el8_1.ppc64le.rpm perf-debuginfo-4.18.0-147.43.1.el8_1.ppc64le.rpm python3-perf-debuginfo-4.18.0-147.43.1.el8_1.ppc64le.rpm x86_64: bpftool-debuginfo-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-debug-debuginfo-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-debuginfo-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-debuginfo-common-x86_64-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-tools-debuginfo-4.18.0-147.43.1.el8_1.x86_64.rpm kernel-tools-libs-devel-4.18.0-147.43.1.el8_1.x86_64.rpm perf-debuginfo-4.18.0-147.43.1.el8_1.x86_64.rpm python3-perf-debuginfo-4.18.0-147.43.1.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-2020-0444 https://access.redhat.com/security/cve/CVE-2020-14351 https://access.redhat.com/security/cve/CVE-2020-25705 https://access.redhat.com/security/cve/CVE-2020-29661 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 iQIVAwUBYD4XlNzjgjWX9erEAQgOyg//eyNXlptdAUDusKgF5I/aHd2xPjMn89Kw FSwuLaJ21Lpz1JJkQ6MIGRLCAsNj2docwt0i4jUqF0ya1Wj+dxyXtDJVEDRFjAj+ TTns9di2BuIEcEXwH5OxgKWtSZwwOlcud4rmDiMd6xL1bELXnOlKvRsQ5PWgmH2w r/nozP5kpS2IOxORjn3KXXf4OE9IQbufLeUCu7Akv5pTXHjEu+YczWp7crawlNMf 4MhwHSzwIksKfYQJE/wo2UxUY1+HsiIX03qT3LvZpJqmrh05DFlHzaxwXonL08mS sYsHItXGKNVZy25YLC/DZQm9/ZlwOL4whQIVN7cEcxMJUPrn793tdmL+oU3I9lPG HgMYqSgXAmScQoXEslkuAfAhFqQ8ptVBRETxAm8Ppbule2+TN5PeCL+EjPFdkhZD 4kkA0Geq9NwkzEp9u53L+EX/ddbTx6NIT2V3Oexv/B+z079Hw4G2CKyfjrNbRlaB sYWyhiBBSxLQOAIlnkeUz+F21erBym8K6O5IrMeTrrH18bKB2289lbB2n20m2nBP /e4vFc9KZ8XUooTTuM01O8Af3XVAOKveK/MKjg87p3AzsdWTocOC4CxljGSqxLGc BFp7OZadh8BVObfHpf7cCqY0/ZMtIhBGTi16d5NF17smpQifIqXFQelaKyaw+QiU xEvgI0/yhmY= =o9Ol -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce