CVE-2013-1943

CVE-2013-1943 describes a privilege escalation and information disclosure vulnerability in the KVM subsystem of the Linux kernel prior to version 3.0, affecting distributions like Canonical and Red Hat. This flaw stems from a lack of kernel address validation during memory slot allocation for guest physical address spaces. With a CVSS score of 7.8 (HIGH), the vulnerability allows local users to gain privileges or access sensitive kernel memory via a crafted application, requiring low attack complexity and no user interaction. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.