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    RedHat: RHSA-2021-0003:01 Important: kernel security and bug fix update

    Date 03 Jan 2021
    361
    Posted By LinuxSecurity Advisories
    An update for kernel is now available for Red Hat Enterprise Linux 8. 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
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    =====================================================================
                       Red Hat Security Advisory
    
    Synopsis:          Important: kernel security and bug fix update
    Advisory ID:       RHSA-2021:0003-01
    Product:           Red Hat Enterprise Linux
    Advisory URL:      https://access.redhat.com/errata/RHSA-2021:0003
    Issue date:        2021-01-04
    CVE Names:         CVE-2020-25211 
    =====================================================================
    
    1. Summary:
    
    An update for kernel is now available for Red Hat Enterprise Linux 8.
    
    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 (v. 8) - aarch64, ppc64le, x86_64
    Red Hat Enterprise Linux BaseOS (v. 8) - 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: Local buffer overflow in ctnetlink_parse_tuple_filter in
    net/netfilter/nf_conntrack_netlink.c (CVE-2020-25211)
    
    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):
    
    * avoid flush_backlog IPI for isolated CPUs by configuring RPS cpumask
    (BZ#1883314)
    
    * rngd consumes 100% cpu on rhel-8.3 system in fips mode (BZ#1886192)
    
    * RHEL8.1 - Random memory corruption may occur due to incorrect tlbflush
    (BZ#1899208)
    
    * fips mode boot is broken after adding extrng (BZ#1899584)
    
    * pmtu of 1280 for vxlan as bridge port won't work (BZ#1902082)
    
    * rpc task loop with kworker spinning at 100% CPU for 10 minutes when
    umount an NFS 4.x share with sec=krb5 triggered by unmount of the NFS share
    (BZ#1907667)
    
    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/):
    
    1877571 - CVE-2020-25211 kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c
    
    6. Package List:
    
    Red Hat Enterprise Linux BaseOS (v. 8):
    
    Source:
    kernel-4.18.0-240.10.1.el8_3.src.rpm
    
    aarch64:
    bpftool-4.18.0-240.10.1.el8_3.aarch64.rpm
    bpftool-debuginfo-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-core-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-cross-headers-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-debug-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-debug-core-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-debug-debuginfo-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-debug-devel-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-debug-modules-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-debug-modules-extra-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-debuginfo-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-debuginfo-common-aarch64-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-devel-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-headers-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-modules-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-modules-extra-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-tools-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-tools-debuginfo-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-tools-libs-4.18.0-240.10.1.el8_3.aarch64.rpm
    perf-4.18.0-240.10.1.el8_3.aarch64.rpm
    perf-debuginfo-4.18.0-240.10.1.el8_3.aarch64.rpm
    python3-perf-4.18.0-240.10.1.el8_3.aarch64.rpm
    python3-perf-debuginfo-4.18.0-240.10.1.el8_3.aarch64.rpm
    
    noarch:
    kernel-abi-whitelists-4.18.0-240.10.1.el8_3.noarch.rpm
    kernel-doc-4.18.0-240.10.1.el8_3.noarch.rpm
    
    ppc64le:
    bpftool-4.18.0-240.10.1.el8_3.ppc64le.rpm
    bpftool-debuginfo-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-core-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-cross-headers-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-debug-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-debug-core-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-debug-debuginfo-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-debug-devel-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-debug-modules-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-debug-modules-extra-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-debuginfo-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-debuginfo-common-ppc64le-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-devel-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-headers-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-modules-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-modules-extra-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-tools-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-tools-debuginfo-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-tools-libs-4.18.0-240.10.1.el8_3.ppc64le.rpm
    perf-4.18.0-240.10.1.el8_3.ppc64le.rpm
    perf-debuginfo-4.18.0-240.10.1.el8_3.ppc64le.rpm
    python3-perf-4.18.0-240.10.1.el8_3.ppc64le.rpm
    python3-perf-debuginfo-4.18.0-240.10.1.el8_3.ppc64le.rpm
    
    s390x:
    bpftool-4.18.0-240.10.1.el8_3.s390x.rpm
    bpftool-debuginfo-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-core-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-cross-headers-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-debug-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-debug-core-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-debug-debuginfo-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-debug-devel-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-debug-modules-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-debug-modules-extra-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-debuginfo-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-debuginfo-common-s390x-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-devel-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-headers-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-modules-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-modules-extra-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-tools-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-tools-debuginfo-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-zfcpdump-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-zfcpdump-core-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-zfcpdump-debuginfo-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-zfcpdump-devel-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-zfcpdump-modules-4.18.0-240.10.1.el8_3.s390x.rpm
    kernel-zfcpdump-modules-extra-4.18.0-240.10.1.el8_3.s390x.rpm
    perf-4.18.0-240.10.1.el8_3.s390x.rpm
    perf-debuginfo-4.18.0-240.10.1.el8_3.s390x.rpm
    python3-perf-4.18.0-240.10.1.el8_3.s390x.rpm
    python3-perf-debuginfo-4.18.0-240.10.1.el8_3.s390x.rpm
    
    x86_64:
    bpftool-4.18.0-240.10.1.el8_3.x86_64.rpm
    bpftool-debuginfo-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-core-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-cross-headers-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-debug-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-debug-core-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-debug-debuginfo-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-debug-devel-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-debug-modules-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-debug-modules-extra-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-debuginfo-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-debuginfo-common-x86_64-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-devel-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-headers-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-modules-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-modules-extra-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-tools-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-tools-debuginfo-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-tools-libs-4.18.0-240.10.1.el8_3.x86_64.rpm
    perf-4.18.0-240.10.1.el8_3.x86_64.rpm
    perf-debuginfo-4.18.0-240.10.1.el8_3.x86_64.rpm
    python3-perf-4.18.0-240.10.1.el8_3.x86_64.rpm
    python3-perf-debuginfo-4.18.0-240.10.1.el8_3.x86_64.rpm
    
    Red Hat CodeReady Linux Builder (v. 8):
    
    aarch64:
    bpftool-debuginfo-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-debug-debuginfo-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-debuginfo-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-debuginfo-common-aarch64-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-tools-debuginfo-4.18.0-240.10.1.el8_3.aarch64.rpm
    kernel-tools-libs-devel-4.18.0-240.10.1.el8_3.aarch64.rpm
    perf-debuginfo-4.18.0-240.10.1.el8_3.aarch64.rpm
    python3-perf-debuginfo-4.18.0-240.10.1.el8_3.aarch64.rpm
    
    ppc64le:
    bpftool-debuginfo-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-debug-debuginfo-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-debuginfo-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-debuginfo-common-ppc64le-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-tools-debuginfo-4.18.0-240.10.1.el8_3.ppc64le.rpm
    kernel-tools-libs-devel-4.18.0-240.10.1.el8_3.ppc64le.rpm
    perf-debuginfo-4.18.0-240.10.1.el8_3.ppc64le.rpm
    python3-perf-debuginfo-4.18.0-240.10.1.el8_3.ppc64le.rpm
    
    x86_64:
    bpftool-debuginfo-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-debug-debuginfo-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-debuginfo-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-debuginfo-common-x86_64-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-tools-debuginfo-4.18.0-240.10.1.el8_3.x86_64.rpm
    kernel-tools-libs-devel-4.18.0-240.10.1.el8_3.x86_64.rpm
    perf-debuginfo-4.18.0-240.10.1.el8_3.x86_64.rpm
    python3-perf-debuginfo-4.18.0-240.10.1.el8_3.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-2020-25211
    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.
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