fetchmail 5.9.9 through 6.3.19 does not properly limit the wait time after issuing a (1) STARTTLS or (2) STLS request, which allows remote servers to cause a denial of service (application hang) by acknowledging the request but not sending additional packets.
2011-06-02T19:55:03.903
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 | fetchmail | fetchmail | 5.9.9 | Yes |
| Application | fetchmail | fetchmail | 5.9.10 | Yes |
| Application | fetchmail | fetchmail | 5.9.11 | Yes |
| Application | fetchmail | fetchmail | 5.9.13 | Yes |
| Application | fetchmail | fetchmail | 6.0.0 | Yes |
| Application | fetchmail | fetchmail | 6.1.0 | Yes |
| Application | fetchmail | fetchmail | 6.1.3 | Yes |
| Application | fetchmail | fetchmail | 6.2.0 | Yes |
| Application | fetchmail | fetchmail | 6.2.1 | Yes |
| Application | fetchmail | fetchmail | 6.2.2 | Yes |
| Application | fetchmail | fetchmail | 6.2.3 | Yes |
| Application | fetchmail | fetchmail | 6.2.4 | Yes |
| Application | fetchmail | fetchmail | 6.2.5 | Yes |
| Application | fetchmail | fetchmail | 6.2.5.1 | Yes |
| Application | fetchmail | fetchmail | 6.2.5.2 | Yes |
| Application | fetchmail | fetchmail | 6.2.5.4 | Yes |
| Application | fetchmail | fetchmail | 6.2.6 | Yes |
| Application | fetchmail | fetchmail | 6.2.6 | Yes |
| Application | fetchmail | fetchmail | 6.2.6 | Yes |
| Application | fetchmail | fetchmail | 6.2.9 | Yes |
| Application | fetchmail | fetchmail | 6.2.9 | Yes |
| Application | fetchmail | fetchmail | 6.2.9 | Yes |
| Application | fetchmail | fetchmail | 6.2.9 | Yes |
| Application | fetchmail | fetchmail | 6.2.9 | Yes |
| Application | fetchmail | fetchmail | 6.2.9 | Yes |
| Application | fetchmail | fetchmail | 6.2.9 | Yes |
| Application | fetchmail | fetchmail | 6.3.0 | Yes |
| Application | fetchmail | fetchmail | 6.3.1 | Yes |
| Application | fetchmail | fetchmail | 6.3.2 | Yes |
| Application | fetchmail | fetchmail | 6.3.3 | Yes |
| Application | fetchmail | fetchmail | 6.3.4 | Yes |
| Application | fetchmail | fetchmail | 6.3.5 | Yes |
| Application | fetchmail | fetchmail | 6.3.6 | Yes |
| Application | fetchmail | fetchmail | 6.3.6 | Yes |
| Application | fetchmail | fetchmail | 6.3.6 | Yes |
| Application | fetchmail | fetchmail | 6.3.6 | Yes |
| Application | fetchmail | fetchmail | 6.3.6 | Yes |
| Application | fetchmail | fetchmail | 6.3.6 | Yes |
| Application | fetchmail | fetchmail | 6.3.7 | Yes |
| Application | fetchmail | fetchmail | 6.3.8 | Yes |
| Application | fetchmail | fetchmail | 6.3.9 | Yes |
| Application | fetchmail | fetchmail | 6.3.9 | Yes |
| Application | fetchmail | fetchmail | 6.3.10 | Yes |
| Application | fetchmail | fetchmail | 6.3.11 | Yes |
| Application | fetchmail | fetchmail | 6.3.12 | Yes |
| Application | fetchmail | fetchmail | 6.3.13 | Yes |
| Application | fetchmail | fetchmail | 6.3.14 | Yes |
| Application | fetchmail | fetchmail | 6.3.15 | Yes |
| Application | fetchmail | fetchmail | 6.3.16 | Yes |
| Application | fetchmail | fetchmail | 6.3.17 | Yes |
| Application | fetchmail | fetchmail | 6.3.18 | Yes |
| Application | fetchmail | fetchmail | 6.3.19 | Yes |