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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.1017 amd64-microcode security update 23 March 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: amd64-microcode Publisher: Debian Operating System: Debian GNU/Linux 8 Impact/Access: Access Privileged Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2017-5715 Reference: ESB-2018.2770 ESB-2018.2056 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Package : amd64-microcode Version : 3.20181128.1~deb8u1 CVE ID : CVE-2017-5715 Debian Bug : 886382 It was discovered that systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis (Spectre v2). Multiple fixes were done already in Linux kernel, intel-microcode etc. This fix adds amd-microcode-based IBPB support. For Debian 8 "Jessie", this problem has been fixed in version 3.20181128.1~deb8u1. We recommend that you upgrade your amd64-microcode package. Further information about Debian LTS security advisories, how to apply these updates to your system and frequent Regards, Anton - -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEu71F6oGKuG/2fnKF0+Fzg8+n/wYFAl51H84ACgkQ0+Fzg8+n /wZvjw//dgFzx6McqaXwd9ydzqxrvxIXxiNU3yYQKEZ6NxTjMHSrrPBCCKWfy36d lvjzK40Krmn1Q7YSae122YWi/4Sk5S5Y3QTgGD+QHrhQ1AYoyCmbRL3t+drntvVU lCKv/3VKlLA+E9UX3w5ZKRxOHSoiIbliJ+k8q2PbgruttOX3RJLEtzv3bjUCBsmf uO5WS/fZt5ia8Qrsk8xZ4uBnF3GgmfUDVaR8Pl9oBIcesBZUqZb0mL73NoGsdIyJ vKN9h14c+3JujOgMu+GFJ8nNUl8KvLHU3RjXpIK0Ov/PiTykiZed+h2KkA07scJe gmrbOQsZa53/PJUS4/PT+Nk7UaQh9UPxb3Ipw7QfiOcHY5h17zSwipVmo3nyeftC N/3khJLQhmiwTl4ejGVcR6PEdF+Gh0Ry9K196BqXwjnsoly+HYKmEARNsVygxQlR GnN2MG+tTCZMjo6tDv8sV5Lsmmjj6/5UEATZaDxLalRRlbNpXRAAd15sxWQCCFPC FIx1xaEvlqvkqNvjtudcwDvVv/8c/vYvilzmdTz63WQrP00VPo3SVdpASuIMbBDP D38D4WtYrwUgKWPI1Vb8aiJAPNhPUzLiSzT1/rC3AZ+BmX3IiFtLXLly+33p5voo acpXt/Fh0ufCnjhsxLaTgkkdksTucmMf0JwE+bzDmWgZFq5hjLM= =HLKx - -----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 iQIVAwUBXnhP+GaOgq3Tt24GAQickQ/9GWegE8k3K0SeW+5tavbHzarjwUHHfcPC fIlbsWqQDkQdZYDAxvqhoivthh0lHU1pg4J2gzWLdYTXFsmdmDaHVC4wo3vRWTxj e3EVVbaW42olFMnx8GGPnfTSqMib/1mkDdLrKpzWbADIRVhzOSoFCroMUQhAuSea abuMvFgYP2GXGtqrEFOyifWCaTOi2ps0+yyrQqqHnztqwjSVEzPEbFmDq4ukDLwX 0SDREJOdGl4IJiIUOUP0n05UywgFiV//FLzlzQnAsr24O13eRMNc6IFS6cDAsw38 Js87kcE/ER/HpSSWourwBoowoa9B6kLUvNzTO2Yj5yLU6GoNAbFh6qfAJ1v4xBKz oeHTK1EPnXLSTpeVpAz/zr2vDgPztvZr8QXPHrllBq14M+oXcl0sHqfkK8afRsw+ rAVYLgiD804TRhwtAxjXRxCX5Da1HefLjObkdtxNi2eZ4qTeZ9M42oHTENy+2tG0 otjmaDeV0eVrS/ttlIZpjh8yONtfGP26X5AbWeJkNSAqIoOwEwwJe99FCvjNyLZE HYyRMMzphT51HpTSsMKFKrSi7it1JDZ7YZ11f9KiFnexT4CE5jXP74+/rhV7zMOI DpSAqPdvLgtjDyed9o1TLlawnzDAkcksHEVCINcT6zzdQ4mUywAniNDKTWJnDmLK k+WpQkbSOi4= =FvAY -----END PGP SIGNATURE-----