Apache Web Server for Windows and OS2 denial of service
| apache-server-dos (6527) |  Medium Risk |
Description:
Apache HTTP Server is vulnerable to a denial of service attack. An attacker could send a specially-malformed GET request to the server to cause the server to stop responding. The server must be restarted in order to regain normal functionality.
Consequences:
Denial of Service
Remedy:
Upgrade to the latest version of Apache Web Server (1.3.20 or later), available from the Apache Web site. See References.
References:
- Apache Web site: Full Problem Report Text for PR#7522.
- Apache Web site: Index of /dist/httpd.
- Apache-announce Mailing List, 2001-05-12 21:21:13: [Announce] Apache 1.3 Security Fix Available for Win32/OS2 users.
- BugTraq Mailing List, Tue May 22 2001 - 01:46:37 CDT: [Announce] Apache 1.3.20 Released.
- BID-2740: Apache Web Server HTTP Request Denial of Service Vulnerability
- CVE-2001-1342: Apache before 1.3.20 on Windows and OS/2 systems allows remote attackers to cause a denial of service (GPF) via an HTTP request for a URI that contains a large number of / (slash) or other characters, which causes certain functions to dereference a null pointer.
- OSVDB ID: 1833: Apache HTTP Server Multiple Slash GET Request DoS
- US-CERT VU#125235: Apache Web Server vulnerable to DoS via crafted HTTP request
Platforms Affected:
- Apache HTTP Server 1.3.12
- Apache HTTP Server 1.3.13
- Apache HTTP Server 1.3.14
- Apache HTTP Server 1.3.15
- Apache HTTP Server 1.3.16
- Apache HTTP Server 1.3.17
- Apache HTTP Server 1.3.18
- Apache HTTP Server 1.3.19
Reported:
May 12, 2001
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