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Debian: DSA-4263-1 Critical: Xen Buffer Overflow Affects HVM Guests

Jason Geffner discovered a buffer overflow in the emulated floppy disk drive, resulting in the potential execution of arbitrary code. This only affects HVM guests. . -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - ------------------------------------------------------------------------- Debian Security Advisory DSA-3262-1 This email address is being protected from spambots. You need JavaScript enabled to view it. http://www.debian.org/security/ Moritz Muehlenhoff May 18, 2015 http://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : xen CVE ID : CVE-2015-3456 Jason Geffner discovered a buffer overflow in the emulated floppy disk drive, resulting in the potential execution of arbitrary code. This only affects HVM guests. For the oldstable distribution (wheezy), this problem has been fixed in version 4.1.4-3+deb7u6. The stable distribution (jessie) is already fixed through the qemu update provided as DSA-3259-1. 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: This email address is being protected from spambots. You need JavaScript enabled to view it. . A critical vulnerability has been identified in the simulated floppy disk drive of Xen, which poses a threat to HVM guests. Ensure you update your software immediately.. Xen Security, Debian Kernel, Buffer Overflow Fix, HVM Guest Vulnerability. . Severity: Critical. LinuxSecurity.com Team

May 18, 2015 •Critical Debian