QEMU icebp instruction denial of service
| qemu-icebp-dos (34043) |  Low Risk |
Description:
QEMU is vulnerable to a denial of service, caused by an error in the icebp instruction. A local attacker could exploit this vulnerability by executing the icebp instruction to cause the virtual machine to crash.
Platforms Affected:
- Debian, Debian Linux 3.1
- Debian, Debian Linux 4.0
- Fabrice Bellard, QEMU 0.8.2
- MandrakeSoft, Mandrake Linux 2008.0
- MandrakeSoft, Mandrake Linux 2008.0 X86_64
- MandrakeSoft, Mandrake Linux 2008.1
- MandrakeSoft, Mandrake Linux 2008.1 X86_64
Remedy:
For Debian GNU/Linux:
Refer to DSA-1284-1 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Denial of Service
References:
- QEMU Web site, QEMU at http://fabrice.bellard.free.fr/qemu/.
- Tavis Ormandy White paper, An Empirical Study into the Security Exposures to Hosts of Hostile Virtualized Environments at http://taviso.decsystem.org/virtsec.pdf.
- BID-23731: QEMU Multiple Local Vulnerabilities
- CVE-2007-1322: QEMU 0.8.2 allows local users to halt a virtual machine by executing the icebp instruction.
- DSA-1284: qemu -- several vulnerabilities
- FrSIRT/ADV-2007-1597: QEMU Data Handling Multiple Command Execution and Denial of Service Vulnerabilities
- MDVSA-2008:162: qemu
- SA25073: QEMU Various Vulnerabilities
Reported:
May 01, 2007
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