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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.1589 kernel security and bug fix update 12 May 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: Red Hat Operating System: Red Hat Impact/Access: Overwrite Arbitrary Files -- Existing Account Denial of Service -- Existing Account Access Confidential Data -- Remote/Unauthenticated Reduced Security -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2021-27365 CVE-2021-27364 CVE-2021-27363 CVE-2020-28374 CVE-2020-25705 CVE-2020-25211 CVE-2019-19532 Reference: ESB-2021.1445 ESB-2021.1193 Original Bulletin: https://access.redhat.com/errata/RHSA-2021:1531 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2021:1531-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:1531 Issue date: 2021-05-11 CVE Names: CVE-2019-19532 CVE-2020-25211 CVE-2020-25705 CVE-2020-28374 CVE-2021-27363 CVE-2021-27364 CVE-2021-27365 ===================================================================== 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: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c (CVE-2020-25211) * kernel: SCSI target (LIO) write to any block on ILO backstore (CVE-2020-28374) * kernel: out-of-bounds read in libiscsi module (CVE-2021-27364) * kernel: heap buffer overflow in the iSCSI subsystem (CVE-2021-27365) * kernel: malicious USB devices can lead to multiple out-of-bounds write (CVE-2019-19532) * kernel: ICMP rate limiting can be used for DNS poisoning attack (CVE-2020-25705) * kernel: iscsi: unrestricted access to sessions and handles (CVE-2021-27363) 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): * memcg: mem_cgroup_idr can be updated in an uncoordinated manner which can lead to corruption (BZ#1931899) * [infiniband] Backport Request to fix Multicast Sendonly joins (BZ#1937819) * [Azure][RHEL-7]Mellanox Patches To Prevent Kernel Hang In MLX4 (BZ#1939791) 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/): 1781821 - CVE-2019-19532 kernel: malicious USB devices can lead to multiple out-of-bounds write 1877571 - CVE-2020-25211 kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c 1894579 - CVE-2020-25705 kernel: ICMP rate limiting can be used for DNS poisoning attack 1899804 - CVE-2020-28374 kernel: SCSI target (LIO) write to any block on ILO backstore 1930078 - CVE-2021-27365 kernel: heap buffer overflow in the iSCSI subsystem 1930079 - CVE-2021-27363 kernel: iscsi: unrestricted access to sessions and handles 1930080 - CVE-2021-27364 kernel: out-of-bounds read in libiscsi module 6. Package List: Red Hat Enterprise Linux ComputeNode EUS (v. 7.7): Source: kernel-3.10.0-1062.49.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1062.49.1.el7.noarch.rpm kernel-doc-3.10.0-1062.49.1.el7.noarch.rpm x86_64: bpftool-3.10.0-1062.49.1.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debug-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1062.49.1.el7.x86_64.rpm kernel-devel-3.10.0-1062.49.1.el7.x86_64.rpm kernel-headers-3.10.0-1062.49.1.el7.x86_64.rpm kernel-tools-3.10.0-1062.49.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-1062.49.1.el7.x86_64.rpm perf-3.10.0-1062.49.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm python-perf-3.10.0-1062.49.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7): x86_64: bpftool-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1062.49.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1062.49.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm Red Hat Enterprise Linux Server EUS (v. 7.7): Source: kernel-3.10.0-1062.49.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1062.49.1.el7.noarch.rpm kernel-doc-3.10.0-1062.49.1.el7.noarch.rpm ppc64: bpftool-3.10.0-1062.49.1.el7.ppc64.rpm bpftool-debuginfo-3.10.0-1062.49.1.el7.ppc64.rpm kernel-3.10.0-1062.49.1.el7.ppc64.rpm kernel-bootwrapper-3.10.0-1062.49.1.el7.ppc64.rpm kernel-debug-3.10.0-1062.49.1.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-1062.49.1.el7.ppc64.rpm kernel-debug-devel-3.10.0-1062.49.1.el7.ppc64.rpm kernel-debuginfo-3.10.0-1062.49.1.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-1062.49.1.el7.ppc64.rpm kernel-devel-3.10.0-1062.49.1.el7.ppc64.rpm kernel-headers-3.10.0-1062.49.1.el7.ppc64.rpm kernel-tools-3.10.0-1062.49.1.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-1062.49.1.el7.ppc64.rpm kernel-tools-libs-3.10.0-1062.49.1.el7.ppc64.rpm perf-3.10.0-1062.49.1.el7.ppc64.rpm perf-debuginfo-3.10.0-1062.49.1.el7.ppc64.rpm python-perf-3.10.0-1062.49.1.el7.ppc64.rpm python-perf-debuginfo-3.10.0-1062.49.1.el7.ppc64.rpm ppc64le: bpftool-3.10.0-1062.49.1.el7.ppc64le.rpm bpftool-debuginfo-3.10.0-1062.49.1.el7.ppc64le.rpm kernel-3.10.0-1062.49.1.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-1062.49.1.el7.ppc64le.rpm kernel-debug-3.10.0-1062.49.1.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-1062.49.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-1062.49.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-1062.49.1.el7.ppc64le.rpm kernel-devel-3.10.0-1062.49.1.el7.ppc64le.rpm kernel-headers-3.10.0-1062.49.1.el7.ppc64le.rpm kernel-tools-3.10.0-1062.49.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-1062.49.1.el7.ppc64le.rpm kernel-tools-libs-3.10.0-1062.49.1.el7.ppc64le.rpm perf-3.10.0-1062.49.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-1062.49.1.el7.ppc64le.rpm python-perf-3.10.0-1062.49.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-1062.49.1.el7.ppc64le.rpm s390x: bpftool-3.10.0-1062.49.1.el7.s390x.rpm bpftool-debuginfo-3.10.0-1062.49.1.el7.s390x.rpm kernel-3.10.0-1062.49.1.el7.s390x.rpm kernel-debug-3.10.0-1062.49.1.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-1062.49.1.el7.s390x.rpm kernel-debug-devel-3.10.0-1062.49.1.el7.s390x.rpm kernel-debuginfo-3.10.0-1062.49.1.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-1062.49.1.el7.s390x.rpm kernel-devel-3.10.0-1062.49.1.el7.s390x.rpm kernel-headers-3.10.0-1062.49.1.el7.s390x.rpm kernel-kdump-3.10.0-1062.49.1.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-1062.49.1.el7.s390x.rpm kernel-kdump-devel-3.10.0-1062.49.1.el7.s390x.rpm perf-3.10.0-1062.49.1.el7.s390x.rpm perf-debuginfo-3.10.0-1062.49.1.el7.s390x.rpm python-perf-3.10.0-1062.49.1.el7.s390x.rpm python-perf-debuginfo-3.10.0-1062.49.1.el7.s390x.rpm x86_64: bpftool-3.10.0-1062.49.1.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debug-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1062.49.1.el7.x86_64.rpm kernel-devel-3.10.0-1062.49.1.el7.x86_64.rpm kernel-headers-3.10.0-1062.49.1.el7.x86_64.rpm kernel-tools-3.10.0-1062.49.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-1062.49.1.el7.x86_64.rpm perf-3.10.0-1062.49.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm python-perf-3.10.0-1062.49.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional EUS (v. 7.7): ppc64: bpftool-debuginfo-3.10.0-1062.49.1.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-1062.49.1.el7.ppc64.rpm kernel-debuginfo-3.10.0-1062.49.1.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-1062.49.1.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-1062.49.1.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-1062.49.1.el7.ppc64.rpm perf-debuginfo-3.10.0-1062.49.1.el7.ppc64.rpm python-perf-debuginfo-3.10.0-1062.49.1.el7.ppc64.rpm ppc64le: bpftool-debuginfo-3.10.0-1062.49.1.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-1062.49.1.el7.ppc64le.rpm kernel-debug-devel-3.10.0-1062.49.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-1062.49.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-1062.49.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-1062.49.1.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-1062.49.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-1062.49.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-1062.49.1.el7.ppc64le.rpm x86_64: bpftool-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1062.49.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1062.49.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1062.49.1.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-2019-19532 https://access.redhat.com/security/cve/CVE-2020-25211 https://access.redhat.com/security/cve/CVE-2020-25705 https://access.redhat.com/security/cve/CVE-2020-28374 https://access.redhat.com/security/cve/CVE-2021-27363 https://access.redhat.com/security/cve/CVE-2021-27364 https://access.redhat.com/security/cve/CVE-2021-27365 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 iQIVAwUBYJp5j9zjgjWX9erEAQhC0g/+KmsFyDRsEhl/e7YbZEIbSywgiDaA8g+8 yt3CEB4+jdNsAgtzwc1OzfRvA22nZdtiTloz7e5FcKAVtnTfrKoi0mC7cfICSdIH dX/vktbISFfwCZ5ACpqk7hJTdZNwOOvQk2n0vir0PtnMraUt4rvX3vInc7i7Zvvf TNFRn+4umvqv9cdCE7iYwFhtiwbqEZzSeel+lvhtBAstgEr+BsEsr4z84q+2sw5U pxZUWWUYYTsIda/McG5BE/kQH+ok8LNDqKwVSx3+rHTLS7PttdukFzs3UJ8GNNx/ k24ENChiuKWvqbCvtYQmRs5AoPydhuZ8fw6OsLIeqHrjIrx0O+wp+R9YZKTkp6Qk KU36WlLW1YGRumNV8FD1s2UGdk3+B9CfUetEjATOqoKz2WGi4n9kOgRUdoh7HuUQ IDsH4yqUBBneoCqjJXpM9X0pvAK4q2+B1p3dCHGfXQ5BTKViSi0afEslFIDzCzwG 3gj3oQWZWlmxuYSwwH3hC6Lxkwq5NpBFaamuyOS5VQXKC/a/OM4F+hMqnMOYuMJm OlCocozw7hCvL2SHpy5OW4Z9CBEsq/oiR/8+ugvGZXte5gxYGa28ToQMqScQo5hS 7pkZo+yxph5/PspSuVXSE1f6nofE95nyagJumeSu8mA2kU7ENTp/Tw/LcFQLIOHx F2TT4nkP8AQ= =nj71 - -----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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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYJr/LuNLKJtyKPYoAQjsEg/+PiL6a8xmRX2KR3W69cHq9hRaYMGXPapk sxOP18+NGglLTyIccxnweAevA0IALWVxMdTUoOdvkOITKW20eXIs2HcPacPG0kMg vfO1z/KgB8tI9WeU6lPwC3cECVlNvhfmUeAQFKVOMRfkp1zW/3y+HTAALXsGzZac i3viBCCoyNmNiL3L9g8lswyxDQY0mCxMaPRabqfAnm0eS4103ndlAY9cytvcIyon h89blqSafIJt8boB19FOLrKnylHxaFxUup24MEL6X4TRhmmRpoJ8dxUcGeS6veHq qzLcBLqAI/5NOFa1/XSwQklgd6jsjEHGC+AB+YU8XINUsSsmPjBiax/lyqbcR0TL MLgeNcqmaFxX0bIpMdNtLQXgyATi0IVmjXBCl6W/v1Sk48S4M3e9FtW22iB8Mv2t IYWvnhlQ4fRidGnCvFIQHcPxIThS9mZLy81HYmvOQ4SIA2+lJOfE18gnZf4bYHIl 283SQdxhXNSktGn4qMX/bIbVC2pk4vnCb1RDzkNf5U2nIbnAIh2VCdXW8l64vKR7 fZZVYxJvo56hzZAnDrkGrEkwKY10Lew+WMgZqOi4+uKGI76gaF/Vx6pYdtgTDuZr hr6CYnmA510uTTXpCXsYCdzr82UoizlDMJ+85LKeRNDYIOtaoJ9cUO0udsRCnviQ LHDdxv75Fx0= =lsa+ -----END PGP SIGNATURE-----