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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.3597 linux vulnerability 19 November 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: linux kernel Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Root Compromise -- Existing Account Access Privileged Data -- Existing Account Execute Arbitrary Code/Commands -- Console/Physical Denial of Service -- Remote with User Interaction Resolution: None CVE Names: CVE-2018-16658 CVE-2018-10880 CVE-2018-9363 CVE-2017-13168 Reference: ESB-2018.3578 ESB-2018.3576 ESB-2018.3237 ESB-2018.2955 Original Bulletin: https://lists.ubuntu.com/archives/ubuntu-security-announce/2018-November/004674.html - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Kernel Live Patch Security Notice 0045-1 November 13, 2018 linux vulnerability ========================================================================== A security issue affects these releases of Ubuntu: | Series | Base kernel | Arch | flavors | |------------------+--------------+----------+------------------| | Ubuntu 14.04 LTS | 4.4.0 | amd64 | generic | | Ubuntu 14.04 LTS | 4.4.0 | amd64 | lowlatency | | Ubuntu 16.04 LTS | 4.4.0 | amd64 | generic | | Ubuntu 16.04 LTS | 4.4.0 | amd64 | lowlatency | | Ubuntu 18.04 LTS | 4.15.0 | amd64 | generic | | Ubuntu 18.04 LTS | 4.15.0 | amd64 | lowlatency | Summary: Several security issues were fixed in the kernel. Software Description: - - linux: Linux kernel Details: 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) Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly ensure that xattr information remained in inode bodies. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (system crash). (CVE-2018-10880) 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) 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) Update instructions: The problem can be corrected by updating your livepatches to the following versions: | Kernel | Version | flavors | |--------------------------+----------+--------------------------| | 4.4.0-133.159 | 45.1 | generic, lowlatency | | 4.4.0-133.159~14.04.1 | 45.1 | lowlatency, generic | | 4.4.0-134.160 | 45.1 | generic, lowlatency | | 4.4.0-134.160~14.04.1 | 45.1 | lowlatency, generic | | 4.4.0-135.161~14.04.1 | 45.1 | lowlatency, generic | | 4.4.0-137.163~14.04.1 | 45.1 | generic, lowlatency | | 4.4.0-138.164 | 45.1 | generic, lowlatency | | 4.4.0-138.164~14.04.1 | 45.1 | lowlatency, generic | | 4.15.0-32.35 | 45.1 | lowlatency, generic | | 4.15.0-32.35~16.04.1 | 45.1 | generic, lowlatency | | 4.15.0-33.36 | 45.1 | lowlatency, generic | | 4.15.0-33.36~16.04.1 | 45.1 | lowlatency, generic | | 4.15.0-34.37 | 45.1 | generic, lowlatency | | 4.15.0-34.37~16.04.1 | 45.1 | lowlatency, generic | | 4.15.0-36.39 | 45.1 | generic, lowlatency | | 4.15.0-36.39~16.04.1 | 45.1 | generic, lowlatency | | 4.15.0-38.41 | 45.1 | lowlatency, generic | | 4.15.0-38.41~16.04.1 | 45.1 | lowlatency, generic | References: CVE-2017-13168, CVE-2018-10880, CVE-2018-9363, CVE-2018-16658 - --------------------------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 iQIVAwUBW/I4t2aOgq3Tt24GAQg6AA/+KFBFa3528ddKQf3SboMAbR0f7shhij5t qoLqdzJy0tYmX1sHhWgViqfM2BidIQ801jdi4Wsyto4njODXNdB8ZJltPwaWakSS jbAOg5U9BPSCSyqxoFr3t259ALoG8BVwKHDSpAxCjSJ15mg6pTUMOY+F3yT/dyxM GOsgadNSIquqfSHNXvT/yVNfmDjaxY8V34cPeXhNx9MelW5Xc4lnvOJfwOfTppk0 55A8NJrLsDLO7wJZxKPe48ycRVKRuCNxk01BXMXf+c2W+EwXCS4aUq+ynpzeEUyp krUSgPHwKumoq5yptR+dVZhq7JM0eAFpt9UgCxrXTo2oOdxuUEXJrsNMdozNb/Yg 4AM+OC+1Jtmc83+cr8ix9VlvDsUqhEao4gaeQzgm2XTsORt+TBdoMmoBshhYCk+O fd/LG5VXc7q5+X7l2OfJiTbLW5w6e/Ofowg6VRHfoYM7Sply6sY43zZzOm1cTVuH 0GeZ2RU0MEgPODugBiIFNJUpMoAqTYpgSJWsV4hVLk6yGfWTYj4F2ZwLDxxgkypf vhdIDySojegi0AeM4Sz6/4uPGzkjfQEFnMle1er7ejpZT8+IfXg8qGT3MDeX8qgk ts7+0j+NswDiFEUTaP393A4PahGn8cAVqe0W6rYAahUBdUBlljXxjg+RqhFltUre un0r8EZ/xic= =kq/2 -----END PGP SIGNATURE-----