CVE-2011-0015

CVE-2011-0015 describes a denial-of-service vulnerability in Tor versions before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha. The flaw stems from improper validation of zlib-compressed data, allowing remote attackers to trigger a denial of service by sending data with an excessively large compression factor. This vulnerability has a CVSS score of 5.0, indicating a medium severity, with a low attack complexity and no authentication required, leading to partial availability impact. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.