system
Describe <CVE-2011-0493>.
user
What is <CVE-2011-0493>?
assistant
Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha might allow remote attackers to cause a denial of service (assertion failure and daemon exit) via vectors related to malformed router caches and improper handling of integer values..