Vulnerabilities > Apache > Http Server > 2.2.12

DATE CVE VULNERABILITY TITLE RISK
2011-11-08 CVE-2011-4415 Improper Input Validation vulnerability in Apache Http Server
The ap_pregsub function in server/util.c in the Apache HTTP Server 2.0.x through 2.0.64 and 2.2.x through 2.2.21, when the mod_setenvif module is enabled, does not restrict the size of values of environment variables, which allows local users to cause a denial of service (memory consumption or NULL pointer dereference) via a .htaccess file with a crafted SetEnvIf directive, in conjunction with a crafted HTTP request header, related to (1) the "len +=" statement and (2) the apr_pcalloc function call, a different vulnerability than CVE-2011-3607.
local
high complexity
apache CWE-20
1.2
2009-10-13 CVE-2009-2699 Improper Locking vulnerability in Apache Http Server and Portable Runtime
The Solaris pollset feature in the Event Port backend in poll/unix/port.c in the Apache Portable Runtime (APR) library before 1.3.9, as used in the Apache HTTP Server before 2.2.14 and other products, does not properly handle errors, which allows remote attackers to cause a denial of service (daemon hang) via unspecified HTTP requests, related to the prefork and event MPMs.
network
low complexity
apache CWE-667
7.5