Null httpd negative "Content-Length" heap buffer overflow

null-httpd-contentlength-bo (10160) The risk level is classified as HighHigh Risk


Null httpd is vulnerable to a buffer overflow, caused by improper handling of negative "Content-Length" values. By sending an HTTP request with a negative value in the "Content-Length" header field, a remote attacker could overflow a buffer and cause the Web server to crash or execute arbitrary code on the system.


Gain Access


Upgrade to the latest version of Null httpd (0.5.1 or later), available from the Freshmeat Web site. See References.


Platforms Affected:

  • NullLogic Null httpd 0.5.0


Sep 22, 2002

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