Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.3372 kpatch-patch security update 13 October 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kpatch-patch Publisher: Red Hat Operating System: Red Hat Impact/Access: Increased Privileges -- Existing Account Denial of Service -- Existing Account Reduced Security -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2021-37576 CVE-2021-22543 Reference: ESB-2021.3304 ESB-2021.3247 ESB-2021.3168 ESB-2021.3015 Original Bulletin: https://access.redhat.com/errata/RHSA-2021:3768 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kpatch-patch security update Advisory ID: RHSA-2021:3768-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:3768 Issue date: 2021-10-12 CVE Names: CVE-2021-22543 CVE-2021-37576 ===================================================================== 1. Summary: An update for kpatch-patch is now available for Red Hat Enterprise Linux 7. 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 Server (v. 7) - 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: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543) * kernel: powerpc: KVM guest OS users can cause host OS memory corruption (CVE-2021-37576) 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: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1965461 - CVE-2021-22543 kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks 1986506 - CVE-2021-37576 kernel: powerpc: KVM guest OS users can cause host OS memory corruption 6. Package List: Red Hat Enterprise Linux Server (v. 7): Source: kpatch-patch-3_10_0-1160_11_1-1-9.el7.src.rpm kpatch-patch-3_10_0-1160_15_2-1-9.el7.src.rpm kpatch-patch-3_10_0-1160_21_1-1-7.el7.src.rpm kpatch-patch-3_10_0-1160_24_1-1-5.el7.src.rpm kpatch-patch-3_10_0-1160_25_1-1-5.el7.src.rpm kpatch-patch-3_10_0-1160_2_1-1-10.el7.src.rpm kpatch-patch-3_10_0-1160_2_2-1-10.el7.src.rpm kpatch-patch-3_10_0-1160_31_1-1-4.el7.src.rpm kpatch-patch-3_10_0-1160_36_2-1-3.el7.src.rpm kpatch-patch-3_10_0-1160_41_1-1-2.el7.src.rpm kpatch-patch-3_10_0-1160_42_2-1-1.el7.src.rpm kpatch-patch-3_10_0-1160_6_1-1-10.el7.src.rpm ppc64le: kpatch-patch-3_10_0-1160_11_1-1-9.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_11_1-debuginfo-1-9.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_15_2-1-9.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_15_2-debuginfo-1-9.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_21_1-1-7.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_21_1-debuginfo-1-7.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_24_1-1-5.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_24_1-debuginfo-1-5.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_25_1-1-5.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_25_1-debuginfo-1-5.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_2_1-1-10.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_2_1-debuginfo-1-10.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_2_2-1-10.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_2_2-debuginfo-1-10.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_31_1-1-4.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_31_1-debuginfo-1-4.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_36_2-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_36_2-debuginfo-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_41_1-1-2.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_41_1-debuginfo-1-2.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_42_2-1-1.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_42_2-debuginfo-1-1.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_6_1-1-10.el7.ppc64le.rpm kpatch-patch-3_10_0-1160_6_1-debuginfo-1-10.el7.ppc64le.rpm x86_64: kpatch-patch-3_10_0-1160_11_1-1-9.el7.x86_64.rpm kpatch-patch-3_10_0-1160_11_1-debuginfo-1-9.el7.x86_64.rpm kpatch-patch-3_10_0-1160_15_2-1-9.el7.x86_64.rpm kpatch-patch-3_10_0-1160_15_2-debuginfo-1-9.el7.x86_64.rpm kpatch-patch-3_10_0-1160_21_1-1-7.el7.x86_64.rpm kpatch-patch-3_10_0-1160_21_1-debuginfo-1-7.el7.x86_64.rpm kpatch-patch-3_10_0-1160_24_1-1-5.el7.x86_64.rpm kpatch-patch-3_10_0-1160_24_1-debuginfo-1-5.el7.x86_64.rpm kpatch-patch-3_10_0-1160_25_1-1-5.el7.x86_64.rpm kpatch-patch-3_10_0-1160_25_1-debuginfo-1-5.el7.x86_64.rpm kpatch-patch-3_10_0-1160_2_1-1-10.el7.x86_64.rpm kpatch-patch-3_10_0-1160_2_1-debuginfo-1-10.el7.x86_64.rpm kpatch-patch-3_10_0-1160_2_2-1-10.el7.x86_64.rpm kpatch-patch-3_10_0-1160_2_2-debuginfo-1-10.el7.x86_64.rpm kpatch-patch-3_10_0-1160_31_1-1-4.el7.x86_64.rpm kpatch-patch-3_10_0-1160_31_1-debuginfo-1-4.el7.x86_64.rpm kpatch-patch-3_10_0-1160_36_2-1-3.el7.x86_64.rpm kpatch-patch-3_10_0-1160_36_2-debuginfo-1-3.el7.x86_64.rpm kpatch-patch-3_10_0-1160_41_1-1-2.el7.x86_64.rpm kpatch-patch-3_10_0-1160_41_1-debuginfo-1-2.el7.x86_64.rpm kpatch-patch-3_10_0-1160_42_2-1-1.el7.x86_64.rpm kpatch-patch-3_10_0-1160_42_2-debuginfo-1-1.el7.x86_64.rpm kpatch-patch-3_10_0-1160_6_1-1-10.el7.x86_64.rpm kpatch-patch-3_10_0-1160_6_1-debuginfo-1-10.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-2021-22543 https://access.redhat.com/security/cve/CVE-2021-37576 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 iQIVAwUBYWVXBdzjgjWX9erEAQiSuw//WW+fYbxn801zZRz5UHtS/GqdBMFvyVJ4 Kzqtxq01Ax2ld7FAwpk7MR6r4wEVoxnRhqGrD3KiQpPaNGnm9cAYSdy8JKeC6NDd sjgMUeJ+yv1riqugOhPhRhnOFzoAZRG+ZpZyvwcLyb3mrcf/Ywf7hAv0M8I9VwfZ XyPz3lMRL/phGyT/WJbzOt1BxrAd8rjQ0FpZTZW8p+bMjWMjblTAKc159lFaPPaE pr/o9tnlfYSuUP7xNpl5nQYZob0ZvXmkuqLfKo4rgSraRj7CRMqpF9tvQAiOeUEk KYeHVV48zTGzgR4b9LFCcR3m1mqAwzZzqm7VmchfKSWtNj3Xbhhyyuz40sxw7Kho +I5sSjaXd3r2g0/NxoCEPjtH1Hl4H8aN9ov369DIFBBxAeyULAh5P2AMDkALCTU/ a16xbcxghmRwwp6mD9RgbQhDYMHjPnxMSMRxAFLstW/3ola2y4W4rbbbIbeOd08h TIj/tCPeCc6a7fr5RGscMsDzU267fYoNRDrkZHsTCTpA+RWEvX5end4tN90RsuRI kwAtJehdxOcA8duWtMWW3VUNn9LN6QKJkPDnqQFQd++6dju1EGOKZrUDNj+2MSW2 +GMxEgvsjbFsX0w8giSExx7kIfHM5NEoKSFeF5Z7jtSLaQ/J9IlokBXySAQzXRZo OqKNAf1AE4w= =fDMI - -----END PGP SIGNATURE----- - -- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYWYmeuNLKJtyKPYoAQjjdw//WuJ508ia4we1H1vXmhiy528fkvQP+JDY SfuCCLDdNLlZ2puQyfMwVhdnU7abnJbO25NN19maREaHgsNRPl8n2yEifNx8N0tP gknjPWx3tFGFIK5YmyyJJ2exPNdzhgl7A9TdNwOSXneFfphLRWgriDgQ96LQAkh+ M51eEOnvTNtTsKKAOQkkrs/ZShvcelrc3mfmmoEHANcVrruSfudgOi6YPV8jDQwr 4fV8JzrjgssrtuN6c1+ejErxb/eJ/ivSl2aWYvMXIaR8B6spqx9n0OdGwcSB2ZOx IPNlKxvuhcVeanx1gl/ZqwSFGepq+9wOt9zz0CQePtacP6PNq0WBDi0UWyFLAZQP iVvHqHb7kDpCuCy/KAESc87F++nMDIkjl6Nui0J5hUYRp7KTRQqGx1YEA69WmtI6 82Hm1bIOyhNXxWeixW1n8yEB60n0u6oEfq4iiGthVEczBpRzp1twKBejwMvyn+d1 hjbVIraAspVcn8/a3rtul27ltCZV6gF5lvoFqPrya2tF3LBOVeYCImkLhRlicUpd sWZf9dlHtxcxvaBdLzM8VaHeRfBpzn+ub9AIjdmPOMBHCzNryxn4eKdHGPFwdDvr Ed9/YhBcfMNiYClRI3Sk6zUxi9GaAlTfBedkhH8Sx31EKcoPjrkWggKJ4SH10aCA ynfnDYg2/tE= =fctS -----END PGP SIGNATURE-----