CVE-2011-1947
UnknownEPSS 2.55%
Last modified
CVE-2011-1947 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.55% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Fetchmail | Fetchmail | 5.9.9 | — |
| Fetchmail | Fetchmail | 5.9.10 | — |
| Fetchmail | Fetchmail | 5.9.11 | — |
| Fetchmail | Fetchmail | 5.9.13 | — |
| Fetchmail | Fetchmail | 6.0.0 | — |
| Fetchmail | Fetchmail | 6.1.0 | — |
| Fetchmail | Fetchmail | 6.1.3 | — |
| Fetchmail | Fetchmail | 6.2.0 | — |
| Fetchmail | Fetchmail | 6.2.1 | — |
| Fetchmail | Fetchmail | 6.2.2 | — |
| Fetchmail | Fetchmail | 6.2.3 | — |
| Fetchmail | Fetchmail | 6.2.4 | — |
| Fetchmail | Fetchmail | 6.2.5 | — |
| Fetchmail | Fetchmail | 6.2.5.1 | — |
| Fetchmail | Fetchmail | 6.2.5.2 | — |
| Fetchmail | Fetchmail | 6.2.5.4 | — |
| Fetchmail | Fetchmail | 6.2.6 | Pre4 |
| Fetchmail | Fetchmail | 6.2.9 | Rc10 |
| Fetchmail | Fetchmail | 6.3.0 | — |
| Fetchmail | Fetchmail | 6.3.1 | — |
| Fetchmail | Fetchmail | 6.3.2 | — |
| Fetchmail | Fetchmail | 6.3.3 | — |
| Fetchmail | Fetchmail | 6.3.4 | — |
| Fetchmail | Fetchmail | 6.3.5 | — |
| Fetchmail | Fetchmail | 6.3.6 | — |
| Fetchmail | Fetchmail | 6.3.7 | — |
| Fetchmail | Fetchmail | 6.3.8 | — |
| Fetchmail | Fetchmail | 6.3.9 | — |
| Fetchmail | Fetchmail | 6.3.10 | — |
| Fetchmail | Fetchmail | 6.3.11 | — |
| Fetchmail | Fetchmail | 6.3.12 | — |
| Fetchmail | Fetchmail | 6.3.13 | — |
| Fetchmail | Fetchmail | 6.3.14 | — |
| Fetchmail | Fetchmail | 6.3.15 | — |
| Fetchmail | Fetchmail | 6.3.16 | — |
| Fetchmail | Fetchmail | 6.3.17 | — |
| Fetchmail | Fetchmail | 6.3.18 | — |
| Fetchmail | Fetchmail | 6.3.19 | — |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2011-1947?
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.
How severe is CVE-2011-1947?
Severity scoring for CVE-2011-1947 is pending analysis. The EPSS model estimates a 2.55% probability of exploitation in the next 30 days.
How do I fix CVE-2011-1947?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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Are you affected by CVE-2011-1947?
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Scan your code nowSource: NVD / NIST