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CVE-2011-1947

Published: Jun 2, 2011Updated: Apr 29, 2026 Sources: CVE List NVDCWE-399
NVD MITRE
5.0CVSSMEDIUM
EPSS Score
2.6%
Top 17.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

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.

CVSS Vector Breakdown

AV:NAC:LAu:NC:NI:NA:P
Exploitability
AV:NAccess Vector
Network
AC:LAccess Complexity
Low
Au:NAuthentication
None
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:PAvailability
Partial
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Weaknesses

CWE-399

Affected Products

fetchmailfetchmail
On-prem
Communications / email-server-client
n/an/a
fetchmailoss-projectCommunicationsaka fetchmail, fetchmail daemon

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

http://gitorious.org/fetchmail/fetchmail/blobs/legacy_63/fetchmail-SA-2011-01.txt
gitorious.org
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061634.html
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061672.html
lists.fedoraproject.org
and 11 more references View all →

Timeline

Published
Jun 2, 2011
Last Updated
Apr 29, 2026

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