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Message-Id: <20120818154642.16CD114A1BF@nube.usla.org.ar> Date: Sat, 18 Aug 2012 12:46:42 -0300 (ART) From: Luciano Bello <luciano@...ian.org> To: debian-security-announce@...ts.debian.org Subject: [SECURITY] [DSA 2531-1] xen security update -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - ------------------------------------------------------------------------- Debian Security Advisory DSA-2531-1 security@...ian.org http://www.debian.org/security/ Luciano Bello August 18, 2012 http://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : xen Vulnerability : Denial of Service Problem type : remote Debian-specific: no CVE ID : CVE-2012-3432 CVE-2012-3433 Debian Bug : 683279 Several denial-of-service vulnerabilities have been discovered in Xen, the popular virtualization software. The Common Vulnerabilities and Exposures project identifies the following issues: CVE-2012-3432 Guest mode unprivileged code, which has been granted the privilege to access MMIO regions, may leverage that access to crash the whole guest. Since this be used to crash a client from within, this vulnerability is consider with low impact. CVE-2012-3433 A guest kernel can cause the host to become unresponsive for a period of time, potentially leading to a DoS. Since an attacker with full control in the guest can impact on the host, this vulnerability is consider with high impact. For the stable distribution (squeeze), this problem has been fixed in version 4.0.1-5.3. For the unstable distribution (sid), this problem has been fixed in version 4.1.3-1. 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: http://www.debian.org/security/ Mailing list: debian-security-announce@...ts.debian.org -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iEYEARECAAYFAlAvuLsACgkQQWTRs4lLtHn8CgCfWnIGc4IXpRIZHXy33ffHDI9r kpIAnjJG3/PVtN3/PWWm5rzGAmfh4Wu5 =6TxK -----END PGP SIGNATURE----- _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
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