lighttpd before 1.4.26, and 1.5.x, allocates a buffer for each read operation that occurs for a request, which allows remote attackers to cause a denial of service (memory consumption) by breaking a request into small pieces that are sent at a slow rate.
2010-02-03T19:30:00.467
2025-04-11T00:51:21.963
Deferred
CVSSv2: 5.0 (MEDIUM)
AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | lighttpd | lighttpd | ≤ 1.4.25 | Yes |
| Application | lighttpd | lighttpd | 1.0.2 | Yes |
| Application | lighttpd | lighttpd | 1.0.3 | Yes |
| Application | lighttpd | lighttpd | 1.1.0 | Yes |
| Application | lighttpd | lighttpd | 1.1.1 | Yes |
| Application | lighttpd | lighttpd | 1.1.2 | Yes |
| Application | lighttpd | lighttpd | 1.1.3 | Yes |
| Application | lighttpd | lighttpd | 1.1.4 | Yes |
| Application | lighttpd | lighttpd | 1.1.5 | Yes |
| Application | lighttpd | lighttpd | 1.1.6 | Yes |
| Application | lighttpd | lighttpd | 1.1.7 | Yes |
| Application | lighttpd | lighttpd | 1.1.8 | Yes |
| Application | lighttpd | lighttpd | 1.1.9 | Yes |
| Application | lighttpd | lighttpd | 1.2.0 | Yes |
| Application | lighttpd | lighttpd | 1.2.1 | Yes |
| Application | lighttpd | lighttpd | 1.2.2 | Yes |
| Application | lighttpd | lighttpd | 1.2.3 | Yes |
| Application | lighttpd | lighttpd | 1.2.5 | Yes |
| Application | lighttpd | lighttpd | 1.2.6 | Yes |
| Application | lighttpd | lighttpd | 1.2.7 | Yes |
| Application | lighttpd | lighttpd | 1.2.8 | Yes |
| Application | lighttpd | lighttpd | 1.3.0 | Yes |
| Application | lighttpd | lighttpd | 1.3.1 | Yes |
| Application | lighttpd | lighttpd | 1.3.2 | Yes |
| Application | lighttpd | lighttpd | 1.3.3 | Yes |
| Application | lighttpd | lighttpd | 1.3.4 | Yes |
| Application | lighttpd | lighttpd | 1.3.5 | Yes |
| Application | lighttpd | lighttpd | 1.3.6 | Yes |
| Application | lighttpd | lighttpd | 1.3.8 | Yes |
| Application | lighttpd | lighttpd | 1.3.9 | Yes |
| Application | lighttpd | lighttpd | 1.3.10 | Yes |
| Application | lighttpd | lighttpd | 1.3.11 | Yes |
| Application | lighttpd | lighttpd | 1.3.12 | Yes |
| Application | lighttpd | lighttpd | 1.3.13 | Yes |
| Application | lighttpd | lighttpd | 1.3.14 | Yes |
| Application | lighttpd | lighttpd | 1.3.15 | Yes |
| Application | lighttpd | lighttpd | 1.3.16 | Yes |
| Application | lighttpd | lighttpd | 1.4.0 | Yes |
| Application | lighttpd | lighttpd | 1.4.2 | Yes |
| Application | lighttpd | lighttpd | 1.4.3 | Yes |
| Application | lighttpd | lighttpd | 1.4.4 | Yes |
| Application | lighttpd | lighttpd | 1.4.5 | Yes |
| Application | lighttpd | lighttpd | 1.4.6 | Yes |
| Application | lighttpd | lighttpd | 1.4.7 | Yes |
| Application | lighttpd | lighttpd | 1.4.8 | Yes |
| Application | lighttpd | lighttpd | 1.4.9 | Yes |
| Application | lighttpd | lighttpd | 1.4.10 | Yes |
| Application | lighttpd | lighttpd | 1.4.11 | Yes |
| Application | lighttpd | lighttpd | 1.4.12 | Yes |
| Application | lighttpd | lighttpd | 1.4.13 | Yes |
| Application | lighttpd | lighttpd | 1.4.14 | Yes |
| Application | lighttpd | lighttpd | 1.4.15 | Yes |
| Application | lighttpd | lighttpd | 1.4.16 | Yes |
| Application | lighttpd | lighttpd | 1.4.17 | Yes |
| Application | lighttpd | lighttpd | 1.4.18 | Yes |
| Application | lighttpd | lighttpd | 1.4.19 | Yes |
| Application | lighttpd | lighttpd | 1.4.20 | Yes |
| Application | lighttpd | lighttpd | 1.4.21 | Yes |
| Application | lighttpd | lighttpd | 1.4.22 | Yes |
| Application | lighttpd | lighttpd | 1.4.23 | Yes |
| Application | lighttpd | lighttpd | 1.4.24 | Yes |
| Application | lighttpd | lighttpd | 1.5.0 | Yes |