XEN was updated to fix multiple bugs and security issues.
The following security issues have been fixed:
- CVE-2012-3494: xen: hypercall set_debugreg
vulnerability (XSA-12)
- CVE-2012-3515: xen: Qemu VT100 emulation
vulnerability (XSA-17)
- CVE-2012-2625: xen: pv bootloader doesn’t check the
size of the bzip2 or lzma compressed kernel, leading to
denial of service