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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.3576 Linux kernel vulnerabilities 15 November 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: linux linux-aws linux-azure linux-gcp linux-kvm linux-oem linux-raspi2 Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Root Compromise -- Existing Account Access Privileged Data -- Existing Account Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2018-16658 CVE-2018-15471 CVE-2018-9363 CVE-2017-13168 Reference: ESB-2018.3036 ESB-2018.2940 ESB-2018.2698 ESB-2018.2547 Original Bulletin: http://www.ubuntu.com/usn/usn-3820-1 http://www.ubuntu.com/usn/usn-3820-2 http://www.ubuntu.com/usn/usn-3820-3 Comment: This bulletin contains three (3) Ubuntu security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Ubuntu Security Notice USN-3820-1 November 14, 2018 linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oem, linux-raspi2 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 18.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - - linux: Linux kernel - - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - - linux-azure: Linux kernel for Microsoft Azure Cloud systems - - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - - linux-kvm: Linux kernel for cloud environments - - linux-oem: Linux kernel for OEM processors - - linux-raspi2: Linux kernel for Raspberry Pi 2 Details: Felix Wilhelm discovered that the Xen netback driver in the Linux kernel did not properly perform input validation in some situations. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-15471) It was discovered that the generic SCSI driver in the Linux kernel did not properly enforce permissions on kernel memory access. A local attacker could use this to expose sensitive information or possibly elevate privileges. (CVE-2017-13168) It was discovered that an integer overflow existed in the CD-ROM driver of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-16658) It was discovered that an integer overflow existed in the HID Bluetooth implementation in the Linux kernel that could lead to a buffer overwrite. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-9363) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: linux-image-4.15.0-1024-gcp 4.15.0-1024.25 linux-image-4.15.0-1026-kvm 4.15.0-1026.26 linux-image-4.15.0-1026-oem 4.15.0-1026.31 linux-image-4.15.0-1027-aws 4.15.0-1027.27 linux-image-4.15.0-1028-raspi2 4.15.0-1028.30 linux-image-4.15.0-1031-azure 4.15.0-1031.32 linux-image-4.15.0-39-generic 4.15.0-39.42 linux-image-4.15.0-39-generic-lpae 4.15.0-39.42 linux-image-4.15.0-39-lowlatency 4.15.0-39.42 linux-image-4.15.0-39-snapdragon 4.15.0-39.42 linux-image-aws 4.15.0.1027.27 linux-image-azure 4.15.0.1031.31 linux-image-gcp 4.15.0.1024.26 linux-image-generic 4.15.0.39.41 linux-image-generic-lpae 4.15.0.39.41 linux-image-gke 4.15.0.1024.26 linux-image-kvm 4.15.0.1026.26 linux-image-lowlatency 4.15.0.39.41 linux-image-oem 4.15.0.1026.31 linux-image-raspi2 4.15.0.1028.26 linux-image-snapdragon 4.15.0.39.41 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://usn.ubuntu.com/usn/usn-3820-1 CVE-2017-13168, CVE-2018-15471, CVE-2018-16658, CVE-2018-9363 Package Information: https://launchpad.net/ubuntu/+source/linux/4.15.0-39.42 https://launchpad.net/ubuntu/+source/linux-aws/4.15.0-1027.27 https://launchpad.net/ubuntu/+source/linux-azure/4.15.0-1031.32 https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1024.25 https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1026.26 https://launchpad.net/ubuntu/+source/linux-oem/4.15.0-1026.31 https://launchpad.net/ubuntu/+source/linux-raspi2/4.15.0-1028.30 - -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEpgY7tWAjCaQ8jrvULwmejQBegfQFAlvstMkACgkQLwmejQBe gfR48g//XqvN4nzdHwC/QzttWms/yQRVWYNYRELNuaSiyZba9U+C2Ch6yMcZDMv4 bcg8BKxPVmDh4tflrkqEoNGDrstcPPF0Kn1pO7su8EMMlZ7t3N9sfWPnrAH8udKR bmHKN9CwN78VKciWHLfLwDzwYN3Vaq9IoyimG7RW4jCXWv/UlWcxc6U/7Ru09lom +dfvKSupau8RaShUHdM2L0kA0jVdyPEMp8S4zQaO50DTJH6racNnzRyYqSL/0RsB HipINwq2C5HXtCF7d7Rq/tAmtfpElE7JkcywMeR6cJHJmm9Xo2OqiuGU2n1urZJ4 4t/utRpO0TfhTrvfCFQ3pZCzrtPjLdAdZAZXbx1eTRNtVIDoiaLZLRPvn5NChLLI tKb7krTPDbP5ZYtJYfl+GlIfXyLP41hyBqwV9eXXP5d8ucmHeFTGLvhWe3S2EEh9 GMu8X39g9Fm3NKNevurtpDTTy2LKCUYt94kmCsxYLSXTQlNn97zMiNQZ9lWs16JO Zhwkuv6lv6N4VS7T9woxDxQlpHwZ1HWWR9F7RimwDIU/xNbn7q3lhJrv8cq1wNcD u3Pa+9/MX+EtU5XTs24X6jqab7lziw5EIzfy3UIRuTc7TNlmf8jOW21aJr29i0Dw upMwJ/QPtCdsm5qpSmnKEb85JaWnGeVW4THSmRfbtabNL4sLQA8= =EQpq - -----END PGP SIGNATURE----- - -------------------------------------------------------------------------------- ========================================================================== Ubuntu Security Notice USN-3820-2 November 14, 2018 linux-hwe, linux-azure, linux-gcp vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 16.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - - linux-azure: Linux kernel for Microsoft Azure Cloud systems - - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - - linux-hwe: Linux hardware enablement (HWE) kernel Details: USN-3820-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 LTS. Felix Wilhelm discovered that the Xen netback driver in the Linux kernel did not properly perform input validation in some situations. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-15471) It was discovered that the generic SCSI driver in the Linux kernel did not properly enforce permissions on kernel memory access. A local attacker could use this to expose sensitive information or possibly elevate privileges. (CVE-2017-13168) It was discovered that an integer overflow existed in the CD-ROM driver of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-16658) It was discovered that an integer overflow existed in the HID Bluetooth implementation in the Linux kernel that could lead to a buffer overwrite. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-9363) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS: linux-image-4.15.0-1024-gcp 4.15.0-1024.25~16.04.2 linux-image-4.15.0-1031-azure 4.15.0-1031.32~16.04.1 linux-image-4.15.0-39-generic 4.15.0-39.42~16.04.1 linux-image-4.15.0-39-generic-lpae 4.15.0-39.42~16.04.1 linux-image-4.15.0-39-lowlatency 4.15.0-39.42~16.04.1 linux-image-azure 4.15.0.1031.36 linux-image-gcp 4.15.0.1024.38 linux-image-generic-hwe-16.04 4.15.0.39.62 linux-image-generic-lpae-hwe-16.04 4.15.0.39.62 linux-image-gke 4.15.0.1024.38 linux-image-lowlatency-hwe-16.04 4.15.0.39.62 linux-image-oem 4.15.0.39.62 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://usn.ubuntu.com/usn/usn-3820-2 https://usn.ubuntu.com/usn/usn-3820-1 CVE-2017-13168, CVE-2018-15471, CVE-2018-16658, CVE-2018-9363 Package Information: https://launchpad.net/ubuntu/+source/linux-azure/4.15.0-1031.32~16.04.1 https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1024.25~16.04.2 https://launchpad.net/ubuntu/+source/linux-hwe/4.15.0-39.42~16.04.1 - -------------------------------------------------------------------------------- ========================================================================== Ubuntu Security Notice USN-3820-3 November 14, 2018 linux-azure vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 14.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - - linux-azure: Linux kernel for Microsoft Azure Cloud systems Details: Felix Wilhelm discovered that the Xen netback driver in the Linux kernel did not properly perform input validation in some situations. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-15471) It was discovered that the generic SCSI driver in the Linux kernel did not properly enforce permissions on kernel memory access. A local attacker could use this to expose sensitive information or possibly elevate privileges. (CVE-2017-13168) It was discovered that an integer overflow existed in the CD-ROM driver of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-16658) It was discovered that an integer overflow existed in the HID Bluetooth implementation in the Linux kernel that could lead to a buffer overwrite. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-9363) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 LTS: linux-image-4.15.0-1031-azure 4.15.0-1031.32~14.04.1+signed1 linux-image-azure 4.15.0.1031.18 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://usn.ubuntu.com/usn/usn-3820-3 https://usn.ubuntu.com/usn/usn-3820-1 CVE-2017-13168, CVE-2018-15471, CVE-2018-16658, CVE-2018-9363 Package Information: https://launchpad.net/ubuntu/+source/linux-azure/4.15.0-1031.32~14.04.1 - --------------------------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. 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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 iQIVAwUBW+z2OGaOgq3Tt24GAQgtOxAAnuIvxm8DBXNuzYEN+pSAaVNkyPro0Y0X h2R8gF9y89WaNlpFHOOqYsAIasq7eFUpH5/hiN5NbjH0CERLidgtHOMlvihDO6V3 oUFSdqxS5UJ9mR2xfXUI2zk9W65d66xJD1m/ZxTN1TmC3ipnIz2Fj/hBTzndBimS inwg6yQCbTn9iYAbpzHhj4wbNkWIqvgFWA+NRn8y84s/LoSvylCQ+uBE5WvoSWsM IIJO00D4Y0xAsK/9M//LTihBO/nZzSVhOxIBHfy9EWJ4TZU/EY34tF/JraIL/LQO rfT22ARcqOBo6uUKPCq+3Nq7Y50HaOKDlQnCCqVGBDiyTQgv+zVtYNJP0OxLBWgq CqNjxHgk6xBTkOVjyN8QIaopF7IJPpfwD7ETi90vuweynC1lsZxv3cE9M7t/+WWa gf/I12XxY/7rBltWKtAXuGZckJzuKf2RB7ptNCgZXcBPgP1qzkC42FR3gD7oQ69j zNi7D1xgL/KYma7cJAxwis3uoXyFwbrGDZbGbY8US8TYnTJq47shbctGqEJeQS+u JUyokL7hXxrHMq2sxUbQ6dnnFOUKjUiZY3Pf/0qb8UocuuPn8p9CnH3O78dV/IId /wRtWxzfFrknSh56dJujxXQ2oaj0JGJIF7jvTxkD5Kzs2Oc4ZRsBXNX4Zv8CK4J+ IdICrzcaJy8= =qEx+ -----END PGP SIGNATURE-----