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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.1741 [DLA 1787-1] linux-4.9 security update 16 May 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: linux-4.9 Publisher: Debian Operating System: Debian GNU/Linux 8 Impact/Access: Access Privileged Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2019-11091 CVE-2018-12130 CVE-2018-12127 CVE-2018-12126 Reference: ASB-2019.0138 ESB-2019.1737 ESB-2019.1728 ESB-2019.1727 Original Bulletin: https://lists.debian.org/debian-lts-announce/2019/05/msg00017.html - --------------------------BEGIN INCLUDED TEXT-------------------- Package : linux-4.9 Version : 4.9.168-1+deb9u2~deb8u1 CVE ID : CVE-2018-12126 CVE-2018-12127 CVE-2018-12130 CVE-2019-11091 Debian Bug : 928125 Multiple researchers have discovered vulnerabilities in the way the Intel processor designs have implemented speculative forwarding of data filled into temporary microarchitectural structures (buffers). This flaw could allow an attacker controlling an unprivileged process to read sensitive information, including from the kernel and all other processes running on the system or cross guest/host boundaries to read host memory. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details. To fully resolve these vulnerabilities it is also necessary to install updated CPU microcode. An updated intel-microcode package (only available in Debian non-free) will be provided via a separate DLA. The updated CPU microcode may also be available as part of a system firmware ("BIOS") update. In addition, this update includes a fix for a regression causing deadlocks inside the loopback driver, which was introduced by the update to 4.9.168 in the last security update. For Debian 8 "Jessie", these problems have been fixed in version 4.9.168-1+deb9u2~deb8u1. We recommend that you upgrade your linux-4.9 packages. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS - -- Ben Hutchings - Debian developer, member of kernel, installer and LTS teams - -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEErCspvTSmr92z9o8157/I7JWGEQkFAlzcgooACgkQ57/I7JWG EQm3ug//bEp3U0qjljZLbwZjKuP9tmwxTclF55h8k2YmrNw5c+v+1hUn25lRJAE5 /LCgiHkZySOMf+IQpKPxSMsKpQMBIqWBksqw0ztAANgSp/YEI0biXIdn62omF/lG o8NWvPVO+qrqIrQn+3kFkUdYYmaCNak+bXFRy89t/OWhgn5XrNmZwgniBfwVrK+Z SKyvnUw9Ou7tbjqRmiP9sjUhJE7OuoVn0JRvj00GmmHiJ/bTsNeCEO05wCC4uDMy DXO3gFrYxpNmGLnMCuz65rhNznxUVtHG8iZp6WMtf5rcuQfgJkvY3XbYvk0Qd84s cYMpViX/Bn5C6AIUhj9DPlcNHO5SrWi2l9EBHx8Y2Wnb98XGILrlLfdx30wNm+Tf rCOsNcpdpob0dEzVha183Y/+RItd2h/Vnq9GYvSzZOHs7og60RIPm+jAmpFNk9Eo eBGl4GUF7we2wNiSe1WtpVnt2qA9iWXeovbS6tE5c2OFciQA+h0CwJqa9wB3zTkr 945BqYA+B4eb3vrIDdW8g2q+ebRzT5VlkPyg5+qGDdzJ2e2zT2EsoPYcK+HMLNFL LrIasPZ9Ll2//63OfYyZ2TY0G28mvCNIioS9YyRi5cjE2zyeQaLVwDwZ2Un1/Up9 1k0NYYHfp831E2H0X+O8O8nRkbTrSKMaIVB9D2Ee4WlsBNbbyBw= =Zvyz - -----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 iQIVAwUBXNyzuGaOgq3Tt24GAQje2hAAkQ0W1+ZMmDlmfsJcO7hC2b/Lk2bp4n+2 JgbeuzJ+1XVk8d2Zpmkv3G568/U593peA0dcQdMh1Nw3EZ9irWJAFtOgapFYnIC1 1e+CKsO2BrEDjSTbmorqLjDfqm3wjbf3wEOxr7B26gDbsIbNOP6cm4Wwq24IPag4 V5urVOsJoHwFqrfb8tjKOCej7h9qn3rJZ9WiybvNxFlPYQeVBuv5JtM/KioHPiOl eaqLT1S5YBlAwh3eergQU6AlqBhaO3Hcxd3eDpgTqkZwbBW7ZQV3DN4HwnKKXR7s h4Vzz26fhyFHtOtd0Byizp44LgczLvyw8xhj9Tn+2NitCWPAnfcT0/tLKkmj7xcs xYJmigx2WVXGQ67DFTyvP+ufl6eEuNqwePabZCP8ByUWHpk/xWahujkfCKUP4512 Novamc/+8Rh8rEeytW1owz/bHh3KdRZxVer6JWcMA03QKGox0LHIf3Po/2AJp3ML hwZ3U9+Y4UQYEfo12EuUspVX1KRtZXlBxxSTtdT2XuPjmU0F7ZIGvUsam2Kb8gye n7vO/XmBj1s+JWHe33d1JLYfUXeIK1oj0iW47OX+WIlh5pxQo8D98BHMqRXC8qxA zMm5E3316GfVAfOvwCKdZ7c0zKXSdAf6zCZZOsOpUnd+J2QsoDJwCbrdMn6l1Hto mjfxIIMdq2U= =1BhR -----END PGP SIGNATURE-----