CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
EPSS
Percentile
97.0%
Buffer overflow in the fcgi_env_add function in mod_proxy_backend_fastcgi.c
in the mod_fastcgi extension in lighttpd before 1.4.18 allows remote
attackers to overwrite arbitrary CGI variables and execute arbitrary code
via an HTTP request with a long content length, as demonstrated by
overwriting the SCRIPT_FILENAME variable, aka a “header overflow.”