CVE-2007-1320: Debian Linux

High severity, CVSS 7.2. EPSS: 0.5% chance of exploitation in the next 30 days.

Multiple heap-based buffer overflows in the cirrus_invalidate_region function in the Cirrus VGA extension in QEMU 0.8.2, as used in Xen and possibly other products, might allow local users to execute arbitrary code via unspecified vectors related to "attempting to mark non-existent regions as dirty," aka the "bitblt" heap overflow.

Affected products

• Debian Debian Linux: version 3.1 only; version 4.0 only
• Fedoraproject Fedora: version 8 only; version 9 only
• Fedoraproject Fedora Core: version 6 only
• Opensuse Opensuse: version 11.0 only; version 11.1 only
• Qemu Qemu: version 0.8.2 only

Published 2007-05-02. Last modified 2026-06-16.