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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.2737 xen security update 3 November 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: xen Publisher: Debian Operating System: Debian GNU/Linux 8 Debian GNU/Linux 7 Impact/Access: Root Compromise -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2015-7835 Reference: ESB-2015.2723 Original Bulletin: http://www.debian.org/security/2015/dsa-3390 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - - ------------------------------------------------------------------------- Debian Security Advisory DSA-3390-1 security@debian.org https://www.debian.org/security/ Salvatore Bonaccorso November 02, 2015 https://www.debian.org/security/faq - - ------------------------------------------------------------------------- Package : xen CVE ID : CVE-2015-7835 It was discovered that the code to validate level 2 page table entries is bypassed when certain conditions are satisfied. A malicious PV guest administrator can take advantage of this flaw to gain privileges via a crafted superpage mapping. For the oldstable distribution (wheezy), this problem has been fixed in version 4.1.4-3+deb7u9. For the stable distribution (jessie), this problem has been fixed in version 4.4.1-9+deb8u2. We recommend that you upgrade your xen packages. Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIbBAEBCgAGBQJWN6naAAoJEAVMuPMTQ89EJAUP+PTxbDcXdaWsxi1IHoF+JIBs y0IpdchA/L2QWQ57bcG2Uv2Z0fHsFprLNX6WNWz1rOSCXMdwYDDDtecmg4l1oRl2 ozmCg0Zy3KbuG83dBZNKcdAFuOPpccpuxy2uc93z63Xcb9hcmUrrXTtG+jcNvOKN mqWzp33ttqGBljP8EoK/yIy/P1jp8G4o3EoXAplkCQEoICHqCpiAbSU+AnHRxRcN wGcQHOMiBtld/Neu0+NSwzBQvpt2pEmtCPFHysc3+VHrTaYRlEXzhlMNet+klqQe wmrhAZUkW1FuMpcwAjXwQZ4S9kjvEGbsyacefAd6qWBzUhCJx8Lcz/ZvuXvZEmYk Xvu+sEqnWfQwUPefBejbEuC1TLQnYrmOrhBE1CwgoiVJEDiqPJ+Srd8llk5oueur omyJOS/gVQrSeQKaAeOhkCq4PTLUXS8V+BOHLDCQgXqfeS6FXvkKCL5g1dZsCM3W W9AeynQ//rtcJoehhcFxBge4rx/0g4OMrOyxWgXovvchDi3fAYQSIBz+JyjVDJiP VmOyo0eRSlOt2qFMlHtQGbAF44iUW+/aAejSp9Edp99apfbc6umGOhW6httEOoAZ LR68eq24PrJ8RkEyUjvpdHd4DE5T4YBPNPS19wb6Av3m5NQe9ySrVGPGHCmUbres SoSSlICiOGueda089nU= =zS7s - -----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: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== 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 iQIVAwUBVjf7P36ZAP0PgtI9AQJBwxAAtGrdL8RWq0szBA+Hm5KadlIJcc4FotbY InYV8inTsxWWUvX0zl0FuWrtqtBKZn6ePt7Q5QgP51xcWtfVEnjZ3grx2RZkPfFQ 7VDoalBxoHx6UmoO8LCtNgvDe+qpye2W/qIx8Pa4JSzMsCFE2z7TcuCOm2Mn94Ls tXkzIjax9Phfw2tDaFxvltVc8vYtXGJwe9hU62mVSssvkW4YAMoinM64gWTCOoCJ dLpBGuII+tMHlP6/dggP8Y3iyirZQcF84JFHmI8hSdlagAbapeB/uQy0nNfnJyMi 4li8wkr6rgfdefZPR7ct6SX8JokzmPmUoLQueyPeGc6gs4YphI4++KmNcx5YFWWp SOa6ZoClNm+Sw7nGwwN0snnNsExlFYPptxjtLKMZu04JfjlHUgvLZYLjwOVfpCpc huJxfRMHJyB8fcJu7qZoDii/I+3NtT7irbZ7HppzLCUEzQIocFTPw8cvddDZoxw/ LdqXlvJ1JN1NWUkKce6KCYMmBCkTg396XKDJgyFXT22XZ+KQeBW4qNIxp5Zh8MrW 0O8kMz4+n6OfVhd3TKY5tPZ4qPhIi+3mdd3an++HCnGJWZKl4pFBlrJ9PswqqeMx MncKesuke//B6BwV2APv6NFMjS/dL03FOW7aTKvjpqlIeCwoRGzyOjhwb6kRx0x2 1qfByMfJh+A= =OJwM -----END PGP SIGNATURE-----