-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 _______________________________________________________________________ Mandriva Linux Security Advisory MDVSA-2014:249 http://www.mandriva.com/en/support/security/ _______________________________________________________________________ Package : qemu Date : December 14, 2014 Affected: Business Server 1.0 _______________________________________________________________________ Problem Description: Updated qemu packages fix security vulnerabilities: During migration, the values read from migration stream during ram load are not validated. Especially offset in host_from_stream_offset() and also the length of the writes in the callers of the said function. A user able to alter the savevm data (either on the disk or over the wire during migration) could use either of these flaws to corrupt QEMU process memory on the (destination) host, which could potentially result in arbitrary code execution on the host with the privileges of the QEMU process (CVE-2014-7840). Paolo Bonzini of Red Hat discovered that the blit region checks were insufficient in the Cirrus VGA emulator in qemu. A privileged guest user could use this flaw to write into qemu address space on the host, potentially escalating their privileges to those of the qemu host process (CVE-2014-8106). _______________________________________________________________________ References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7840 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8106 http://advisories.mageia.org/MGASA-2014-0525.html _______________________________________________________________________ Updated Packages: Mandriva Business Server 1/X86_64: 2d402807644542a6999844199592ee6a mbs1/x86_64/qemu-1.6.2-1.2.mbs1.x86_64.rpm cc805ac5a37e0b2c4944d4457cdf2af0 mbs1/x86_64/qemu-img-1.6.2-1.2.mbs1.x86_64.rpm cebb60ade872fc9e6d8ff7aef1aeafcd mbs1/SRPMS/qemu-1.6.2-1.2.mbs1.src.rpm _______________________________________________________________________ To upgrade automatically use MandrivaUpdate or urpmi. The verification of md5 checksums and GPG signatures is performed automatically for you. All packages are signed by Mandriva for security. You can obtain the GPG public key of the Mandriva Security Team by executing: gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98 You can view other update advisories for Mandriva Linux at: http://www.mandriva.com/en/support/security/advisories/ If you want to report vulnerabilities, please contact security_(at)_mandriva.com _______________________________________________________________________ Type Bits/KeyID Date User ID pub 1024D/22458A98 2000-07-10 Mandriva Security Team <security*mandriva.com> -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iD8DBQFUjd3ZmqjQ0CJFipgRAs96AKDCRt7N0z3Oqz8I1cNZG/mi9segmgCg8fkW OSYfbSbkvEs6b/gnm/5jqLI= =QRH7 -----END PGP SIGNATURE-----
