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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.4546 kernel-rt security and bug fix update 4 December 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel-rt Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 6 Impact/Access: Access Privileged Data -- Existing Account Denial of Service -- Existing Account Reduced Security -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2019-11811 CVE-2019-5489 CVE-2017-18208 CVE-2017-10661 Reference: ESB-2019.4486 ESB-2017.2379 Original Bulletin: https://access.redhat.com/errata/RHSA-2019:4057 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2019:4057-01 Product: Red Hat Enterprise MRG for RHEL-6 Advisory URL: https://access.redhat.com/errata/RHSA-2019:4057 Issue date: 2019-12-03 CVE Names: CVE-2017-10661 CVE-2017-18208 CVE-2019-5489 CVE-2019-11811 ===================================================================== 1. Summary: An update for kernel-rt is now available for Red Hat Enterprise MRG 2. 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 MRG Realtime for RHEL 6 Server v.2 - noarch, x86_64 3. Description: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): * Kernel: page cache side channel attacks (CVE-2019-5489) * kernel: Handling of might_cancel queueing is not properly pretected against race (CVE-2017-10661) * kernel: Inifinite loop vulnerability in mm/madvise.c:madvise_willneed() function allows local denial of service (CVE-2017-18208) * kernel: use-after-free in drivers/char/ipmi/ipmi_si_intf.c, ipmi_si_mem_io.c, ipmi_si_port_io.c (CVE-2019-11811) 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): * update the MRG 2.5.z 3.10 realtime-kernel sources (BZ#1765670) * [MRG/R] pip_stress hangs when a priority inversion occurs (BZ#1772562) 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/): 1481136 - CVE-2017-10661 kernel: Handling of might_cancel queueing is not properly pretected against race 1551565 - CVE-2017-18208 kernel: Inifinite loop vulnerability in mm/madvise.c:madvise_willneed() function allows local denial of service 1664110 - CVE-2019-5489 Kernel: page cache side channel attacks 1709180 - CVE-2019-11811 kernel: use-after-free in drivers/char/ipmi/ipmi_si_intf.c, ipmi_si_mem_io.c, ipmi_si_port_io.c 1765670 - update the MRG 2.5.z 3.10 realtime-kernel sources 6. Package List: Red Hat MRG Realtime for RHEL 6 Server v.2: Source: kernel-rt-3.10.0-693.61.1.rt56.656.el6rt.src.rpm noarch: kernel-rt-doc-3.10.0-693.61.1.rt56.656.el6rt.noarch.rpm kernel-rt-firmware-3.10.0-693.61.1.rt56.656.el6rt.noarch.rpm x86_64: kernel-rt-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-debug-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-debug-devel-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-debuginfo-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-devel-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-trace-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-trace-devel-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-vanilla-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-vanilla-debuginfo-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-vanilla-devel-3.10.0-693.61.1.rt56.656.el6rt.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-2017-10661 https://access.redhat.com/security/cve/CVE-2017-18208 https://access.redhat.com/security/cve/CVE-2019-5489 https://access.redhat.com/security/cve/CVE-2019-11811 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 2019 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXeYX6NzjgjWX9erEAQgF5g/+MzZ+ocH5O26noowc7A5+Tx5X6io8vOwX G5wX3ASF2POSqhvBzikk8iu6kN6f2aCGmdH3lU7EWB3BaG3B/ghV58bcBaLEO3gJ a66tn002KJh311Srg3V+kZo18ugyMZd07Acg/Qh+YLanNjBu0mD/ZUvsrT2ui6ee /EDPcVawNPBUlacQ079tjQm4mxlEPgbLc4ga3xeU+CyEPGBjyllg83MYanPppAqT v5RnxJ5Xrt0od+eNj3aHOGaz4BS6exWx/IjChGSRTtwRs14XFU+9DBPVLQJUdTQJ DBlgBawADyWnvlNyrJ8U+kKH0SeG9aghLPsXspU5pKxM77WOc15RmQD3/Z9oi2C6 pxsyFYrmWX4wdtQQAX4i3tUtQ0M8E1VvkofJl01j8ikIzHFu+W1bG05B6KJmFr2M TTzlnD/kkUKQZKgtWjrHd7bn80dCEVe7NTy1qXqpZn5wvRpvwdSfs/rXz8JwMigl nekXTAJU57J+7kCbgo+MUi8nV7YBPoX6G3b+meB8lsYg4yK8LkZ7lUi7kUCOKe3H uQOtLoUCcBMlz+wJmF6Vs1Czp+p03DggoCVOaq2GpYdhj7DVXRXhc9N3e9socLq9 zPEg6X8ik5W1b1h98Zsdw1tzsyL0wfhWskAUNrfL9l+3e3UTS1HwTmplFOHAQP+g a1FLCmLhvHc= =iMVJ - -----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 iQIVAwUBXecn02aOgq3Tt24GAQiqKBAAsC2FAY5+4gr2+m/iQYU767VXncAv8/rX pKq31tBp1P0PbszuK/8Zm96DBUJH+71wMZE8j3A5wx/PPmgEC/IaHmnS2zL+b6c5 i/eBHhTxH6lD9dzY5MIh9gO4fzH2heX7q2R0c/2HWPaSUiESNBjoPyl3ss/VEeSd 1TJ5uWKEfIvFjgIK9D8JmTEUUrtKC3ogrJOuXkx9LRzW359c8zVZ1/h6zefURD73 YNW/F684/JucODwJqi+7xEP5WGZMSzCfKPmfUacbZRiXo4w1vVUr2Ry8bryriBc/ JjlzgmndbrUEd0HaBXmTP5xmxrmrVlq1NhRqPF4lLfTAob8iqqzhgdQsTvpOPmSJ bqLyvGuTjv39Dw4AH/PJ5q7Z8EI2VI1AwIYhvcyk5kDEkOvIyaLohRsgubXFt5VQ 63YBOcbu9DF5WTttHG0stNWHt1zgvhse/CBIsdePZJwVa0mujCfWOM6aj/TE/alA fJfWg9/UPn/46fiIU4wTBeQndbDsatZEA1cGriMnRpX7df6ecMKafjrYIxTkVFMi imEUMZdVcHn7QKBdx5cwkqgvQHjjJJb/MQg0nqndUMXfyk621mlStoEh8sgp7oqL OYwaJZfB/+/6mNnDjXnNLfldVT6XJ08lqfx4rfkc7OcDgZ+n3zlwVwtk+Sca8tX0 Mn/VkN3tEto= =OaRs -----END PGP SIGNATURE-----