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Debian Security Advisory DSA 3087-1 (qemu - security update)

Information

Severity

Severity

Medium

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

4.6

CVSSv2 Vector

CVSSv2 Vector

AV:L/AC:L/Au:N/C:P/I:P/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

7 years ago

Modified

Modified

1 year ago

Summary

Paolo Bonzini of Red Hat discovered that the blit region checks were insufficient in the Cirrus VGA emulator in qemu, a fast processor emulator. 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.

Affected Software

Affected Software

qemu on Debian Linux

Detection Method

Detection Method

This check tests the installed software version using the apt package manager.

Solution

Solution

For the stable distribution (wheezy), this problem has been fixed in version 1.1.2+dfsg-6a+deb7u6. We recommend that you upgrade your qemu packages.

Common Vulnerabilities and Exposures (CVE)