CVE-2013-0151

CVE-2013-0151 describes a denial-of-service vulnerability in Xen 4.2.x on x86_32 platforms, specifically within the do_hvm_op function. An attacker with administrative access to an HVM guest with numerous VCPUs can exploit this by leveraging HVM_PARAM_NESTEDHVM operations, leading to long-duration page mappings and a host OS crash. The vulnerability has a CVSS score of 4.6, indicating a medium severity with an adjacent attack vector and high attack complexity, resulting in a complete denial of service. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.