The getmxrecord function in Fetchmail 6.0.0 and earlier does not properly check the boundary of a particular malformed DNS packet from a malicious DNS server, which allows remote attackers to cause a denial of service (crash) when Fetchmail attempts to read data beyond the expected boundary.
2002-10-11T04:00:00.000
2025-04-03T01:03:51.193
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 | ≤ 6.0.0 | Yes |
| Application | fetchmail | fetchmail | 4.5.1 | Yes |
| Application | fetchmail | fetchmail | 4.5.2 | Yes |
| Application | fetchmail | fetchmail | 4.5.3 | Yes |
| Application | fetchmail | fetchmail | 4.5.4 | Yes |
| Application | fetchmail | fetchmail | 4.5.5 | Yes |
| Application | fetchmail | fetchmail | 4.5.6 | Yes |
| Application | fetchmail | fetchmail | 4.5.7 | Yes |
| Application | fetchmail | fetchmail | 4.5.8 | Yes |
| Application | fetchmail | fetchmail | 4.6.0 | Yes |
| Application | fetchmail | fetchmail | 4.6.1 | Yes |
| Application | fetchmail | fetchmail | 4.6.2 | Yes |
| Application | fetchmail | fetchmail | 4.6.3 | Yes |
| Application | fetchmail | fetchmail | 4.6.4 | Yes |
| Application | fetchmail | fetchmail | 4.6.5 | Yes |
| Application | fetchmail | fetchmail | 4.6.6 | Yes |
| Application | fetchmail | fetchmail | 4.6.7 | Yes |
| Application | fetchmail | fetchmail | 4.6.8 | Yes |
| Application | fetchmail | fetchmail | 4.6.9 | Yes |
| Application | fetchmail | fetchmail | 4.7.0 | Yes |
| Application | fetchmail | fetchmail | 4.7.1 | Yes |
| Application | fetchmail | fetchmail | 4.7.2 | Yes |
| Application | fetchmail | fetchmail | 4.7.3 | Yes |
| Application | fetchmail | fetchmail | 4.7.4 | Yes |
| Application | fetchmail | fetchmail | 4.7.5 | Yes |
| Application | fetchmail | fetchmail | 4.7.6 | Yes |
| Application | fetchmail | fetchmail | 4.7.7 | Yes |
| Application | fetchmail | fetchmail | 5.0.0 | Yes |
| Application | fetchmail | fetchmail | 5.0.1 | Yes |
| Application | fetchmail | fetchmail | 5.0.2 | Yes |
| Application | fetchmail | fetchmail | 5.0.3 | Yes |
| Application | fetchmail | fetchmail | 5.0.4 | Yes |
| Application | fetchmail | fetchmail | 5.0.5 | Yes |
| Application | fetchmail | fetchmail | 5.0.6 | Yes |
| Application | fetchmail | fetchmail | 5.0.7 | Yes |
| Application | fetchmail | fetchmail | 5.0.8 | Yes |
| Application | fetchmail | fetchmail | 5.1.0 | Yes |
| Application | fetchmail | fetchmail | 5.1.4 | Yes |
| Application | fetchmail | fetchmail | 5.2.0 | Yes |
| Application | fetchmail | fetchmail | 5.2.1 | Yes |
| Application | fetchmail | fetchmail | 5.2.3 | Yes |
| Application | fetchmail | fetchmail | 5.2.4 | Yes |
| Application | fetchmail | fetchmail | 5.2.7 | Yes |
| Application | fetchmail | fetchmail | 5.2.8 | Yes |
| Application | fetchmail | fetchmail | 5.3.0 | Yes |
| Application | fetchmail | fetchmail | 5.3.1 | Yes |
| Application | fetchmail | fetchmail | 5.3.3 | Yes |
| Application | fetchmail | fetchmail | 5.3.8 | Yes |
| Application | fetchmail | fetchmail | 5.4.0 | Yes |
| Application | fetchmail | fetchmail | 5.4.3 | Yes |
| Application | fetchmail | fetchmail | 5.4.4 | Yes |
| Application | fetchmail | fetchmail | 5.4.5 | Yes |
| Application | fetchmail | fetchmail | 5.5.0 | Yes |
| Application | fetchmail | fetchmail | 5.5.2 | Yes |
| Application | fetchmail | fetchmail | 5.5.3 | Yes |
| Application | fetchmail | fetchmail | 5.5.5 | Yes |
| Application | fetchmail | fetchmail | 5.5.6 | Yes |
| Application | fetchmail | fetchmail | 5.6.0 | Yes |
| Application | fetchmail | fetchmail | 5.7.0 | Yes |
| Application | fetchmail | fetchmail | 5.7.2 | Yes |
| Application | fetchmail | fetchmail | 5.7.4 | Yes |
| Application | fetchmail | fetchmail | 5.8 | Yes |
| Application | fetchmail | fetchmail | 5.8.1 | Yes |
| Application | fetchmail | fetchmail | 5.8.2 | Yes |
| Application | fetchmail | fetchmail | 5.8.3 | Yes |
| Application | fetchmail | fetchmail | 5.8.4 | Yes |
| Application | fetchmail | fetchmail | 5.8.5 | Yes |
| Application | fetchmail | fetchmail | 5.8.6 | Yes |
| Application | fetchmail | fetchmail | 5.8.11 | Yes |
| Application | fetchmail | fetchmail | 5.8.13 | Yes |
| Application | fetchmail | fetchmail | 5.8.14 | Yes |
| Application | fetchmail | fetchmail | 5.8.17 | Yes |
| Application | fetchmail | fetchmail | 5.9.0 | Yes |
| Application | fetchmail | fetchmail | 5.9.4 | Yes |
| Application | fetchmail | fetchmail | 5.9.5 | Yes |
| Application | fetchmail | fetchmail | 5.9.8 | Yes |
| Application | fetchmail | fetchmail | 5.9.10 | Yes |
| Application | fetchmail | fetchmail | 5.9.11 | Yes |
| Application | fetchmail | fetchmail | 5.9.13 | Yes |