CVE-2011-4080

CVE-2011-4080 describes a privilege escalation vulnerability in the Linux kernel, specifically affecting versions before 2.6.39. It allows local users to bypass access restrictions and read the kernel ring buffer by modifying the dmesg_restrict value without requiring the CAP_SYS_ADMIN capability. With a CVSS score of 4.0, this vulnerability has a low attack complexity and requires local access, but can lead to a complete compromise of confidentiality. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.