Xen: Privilege Escalation

Background Xen is a bare-metal hypervisor. Description In CIRRUSBLTMODEMEMSYSSRC mode the bitblit copy routine cirrusbitbltcputovideo fails to check wethehr the specified memory region is safe. Impact A local attacker could potentially execute arbitrary code with privileges of Xen QEMU process on...

Qemu: display: cirrus: potential arbitrary code execution via cirrus_bitblt_cputovideo

Quick emulator QEMU built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrusbitbltcputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute...

Oracle Linux 5 : Important: / xen (ELSA-2007-0323)

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2007-0323 advisory. 3.0.3-25.0.4.el5 - QEmu cirrus bitblit bounds check - CVE-2007-1320 rhbz 296271 - QEmu NE2000 overflow check - CVE-2007-1321 rhbz 296271 - Pygrub guest...

Important: xen security update

3.0.3-25.0.4.el5 - QEmu cirrus bitblit bounds check - CVE-2007-1320 rhbz 296271 - QEmu NE2000 overflow check - CVE-2007-1321 rhbz 296271 - Pygrub guest escape - CVE-2007-4993 rhbz 302821...