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Debian alert DSA-2662-1 (xen)

From:  Salvatore Bonaccorso <>
Subject:  [SECURITY] [DSA 2662-1] xen security update
Date:  Thu, 18 Apr 2013 16:23:40 +0200
Message-ID:  <>
Archive-link:  Article, Thread

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - ------------------------------------------------------------------------- Debian Security Advisory DSA-2662-1 Salvatore Bonaccorso April 18, 2013 - ------------------------------------------------------------------------- Package : xen Vulnerability : several Problem type : remote Debian-specific: no CVE ID : CVE-2013-1917 CVE-2013-1919 Multiple vulnerabilities have been discovered in the Xen hypervisor. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2013-1917 The SYSENTER instruction can be used by PV guests to accelerate system call processing. This instruction, however, leaves the EFLAGS register mostly unmodified. This can be used by malicious or buggy user space to cause the entire host to crash. CVE-2013-1919 Various IRQ related access control operations may not have the intended effect, potentially permitting a stub domain to grant its client domain access to an IRQ it doesn't have access to itself. This can be used by malicious or buggy stub domains kernels to mount a denial of service attack possibly affecting the whole system. For the stable distribution (squeeze), these problems have been fixed in version 4.0.1-5.9. For the testing distribution (wheezy) and the unstable distribution (sid), these problems will be fixed soon. 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: Mailing list: -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQEcBAEBAgAGBQJRcAS2AAoJEL97/wQC1SS+Iv8H/jgF59tOvl0f5ybpS1nOjnim ISDrxnkODEyfDlA9org+o1M61gTPyU8bT0QvjjUfeVKh5y0FewmrVoFYdlE9slI2 Q4vOwf4paQd0D/VcQWVLnTRNoHALIFq/V3WXgpo7Fk7ffXZkjQgdOE7MviX8SfLh gvl6hobIuVeEiDMWROkESpim5UjxX5Xh6X4g9C1a3o82nCxKyv55/SWz4lpCqbxV CNyKt3Qo6IdbHkKVFSasYZhb1oPtiGAMuIFyOhmRXmpZRSyfomuJI4HJlUgs0rZ3 j4ki0LjETq3DfwY5eP2gDPaE2aPc5TgUJC9kmOtUviRFIAWjU0LFwN/y3hZVRVg= =7t1v -----END PGP SIGNATURE----- -- To UNSUBSCRIBE, email to with a subject of "unsubscribe". Trouble? Contact Archive:

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