xend in Xen 3.0.3 does not properly limit the contents...

Vulnerability Description

xend in Xen 3.0.3 does not properly limit the contents of the /local/domain xenstore directory tree, and does not properly restrict a guest VM's write access within this tree, which allows guest OS users to cause a denial of service and possibly have unspecified other impact by writing to (1) console/tty, (2) console/limit, or (3) image/device-model-pid. NOTE: this issue was originally reported as an issue in libvirt 0.3.3 and xenstore, but CVE is considering the core issue to be related to Xen.

References

• http://www.vupen.com/english/advisories/2008/2709
• https://bugzilla.redhat.com/show_bug.cgi?id=464817
• http://www.mandriva.com/security/advisories?name=MDVSA-2009:016
• http://secunia.com/advisories/32064
• http://lists.xensource.com/archives/html/xen-devel/2008-09/msg00992.html
• http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html
• http://openwall.com/lists/oss-security/2008/09/30/6
• http://www.redhat.com/support/errata/RHSA-2009-0003.html
• http://xenbits.xensource.com/staging/xen-3.3-testing.hg?rev/e0e17216ba70
• http://lists.xensource.com/archives/html/xen-devel/2008-09/msg00994.html
• http://www.securityfocus.com/bid/31499
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10627
• http://www.securitytracker.com/id?1020955
• http://www.openwall.com/lists/oss-security/2008/10/04/3
• https://bugzilla.redhat.com/show_bug.cgi?id=464818