CVE-2012-2625 – xen: pv bootloader doesn't check the size of the bzip2 or lzma compressed kernel

https://notcve.org/view.php?id=CVE-2012-2625

The PyGrub boot loader in Xen unstable before changeset 25589:60f09d1ab1fe, 4.2.x, and 4.1.x allows local para-virtualized guest users to cause a denial of service (memory consumption) via a large (1) bzip2 or (2) lzma compressed kernel image. El gestor de arranque Pygrub en Xen inestable ante del changeset 25589:60f09d1ab1fe, v4.2.x, v4.1.x permite causar una denegación de servicio (consumo de memoria) a usuarios locales para-virtualizados a través de una imagen del kernel comprimida en (1) o bzip2 (2) lzma demasiado grande. • http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1817 http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00024.html http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00025.html http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00005.html http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00017.html http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00018.html http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html& • CWE-20: Improper Input Validation •