lighttpd http_request_parse() denial of service
| lighttpd-httprequestparse-dos (45471) |  Low Risk |
Description:
lighttpd is vulnerable to a denial of service, caused by a memory leak error when processing request headers in the http_request_parse() function. By sending a duplicate request header, a remote attacker could exploit this vulnerability to exhaust all available memory resources resulting in a denial of service.
*CVSS:
| Base Score: | 5 |
| Access Vector: | Network |
| Access Complexity: | Low |
| Authentication: | None |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Partial |
| Temporal Score: | 3.7 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Apply the patch for this vulnerability (lighttpd-1.4.19.memory.leak.patch), available from the LIGHTTPD Web site: Ticket #1774. See References.
References:
- LIGHTTPD Web site: Changeset 2305.
- LIGHTTPD Web site: Ticket #1774: lighttpd memory leak on duplicated request header.
- BID-31434: Lighttpd Duplicate Request Header Denial of Service Vulnerability
- CVE-2008-4298: Memory leak in the http_request_parse function in request.c in lighttpd before 1.4.20 allows remote attackers to cause a denial of service (memory consumption) via a large number of requests with duplicate request headers.
- DSA-1645: lighttpd -- various
- GLSA-200812-04: lighttpd: Multiple vulnerabilities
- SA32069: lighttpd Duplicate Request Headers Memory Leak Vulnerability
- SUSE-SR:2008:026: SUSE Security Summary Report
- VUPEN/ADV-2008-2741: Lighttpd Remote Denial of Service and Security Bypass Vulnerabilities
Platforms Affected:
- Debian Debian Linux 4.0
- Gentoo Linux
- lighttpd lighttpd 1.4.1
- lighttpd lighttpd 1.4.10
- lighttpd lighttpd 1.4.11
- lighttpd lighttpd 1.4.12
- lighttpd lighttpd 1.4.13
- lighttpd lighttpd 1.4.14
- lighttpd lighttpd 1.4.15
- lighttpd lighttpd 1.4.16
- lighttpd lighttpd 1.4.17
- lighttpd lighttpd 1.4.18
- lighttpd lighttpd 1.4.19
- lighttpd lighttpd 1.4.2
- lighttpd lighttpd 1.4.3
- lighttpd lighttpd 1.4.4
- lighttpd lighttpd 1.4.5
- lighttpd lighttpd 1.4.6
- lighttpd lighttpd 1.4.7
- lighttpd lighttpd 1.4.8
- lighttpd lighttpd 1.4.9
Reported:
Sep 20, 2008
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.