Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2011-1947

Published: Jun 02, 2011 | Modified: Apr 11, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
2.6 LOW
AV:N/AC:H/Au:N/C:N/I:N/A:P
RedHat/V3
Ubuntu
LOW
Vulnerability-free packages from our partners
root.io logo minimus.io logo echo.ai logo
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2011-1947
CWEhttps://cwe.mitre.org/data/definitions/399.html

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.

Affected Software

NameVendorStart VersionEnd Version
FetchmailFetchmail5.9.9 (including)5.9.9 (including)
FetchmailFetchmail5.9.10 (including)5.9.10 (including)
FetchmailFetchmail5.9.11 (including)5.9.11 (including)
FetchmailFetchmail5.9.13 (including)5.9.13 (including)
FetchmailFetchmail6.0.0 (including)6.0.0 (including)
FetchmailFetchmail6.1.0 (including)6.1.0 (including)
FetchmailFetchmail6.1.3 (including)6.1.3 (including)
FetchmailFetchmail6.2.0 (including)6.2.0 (including)
FetchmailFetchmail6.2.1 (including)6.2.1 (including)
FetchmailFetchmail6.2.2 (including)6.2.2 (including)
FetchmailFetchmail6.2.3 (including)6.2.3 (including)
FetchmailFetchmail6.2.4 (including)6.2.4 (including)
FetchmailFetchmail6.2.5 (including)6.2.5 (including)
FetchmailFetchmail6.2.5.1 (including)6.2.5.1 (including)
FetchmailFetchmail6.2.5.2 (including)6.2.5.2 (including)
FetchmailFetchmail6.2.5.4 (including)6.2.5.4 (including)
FetchmailFetchmail6.2.6-pre4 (including)6.2.6-pre4 (including)
FetchmailFetchmail6.2.6-pre8 (including)6.2.6-pre8 (including)
FetchmailFetchmail6.2.6-pre9 (including)6.2.6-pre9 (including)
FetchmailFetchmail6.2.9-rc10 (including)6.2.9-rc10 (including)
FetchmailFetchmail6.2.9-rc3 (including)6.2.9-rc3 (including)
FetchmailFetchmail6.2.9-rc4 (including)6.2.9-rc4 (including)
FetchmailFetchmail6.2.9-rc5 (including)6.2.9-rc5 (including)
FetchmailFetchmail6.2.9-rc7 (including)6.2.9-rc7 (including)
FetchmailFetchmail6.2.9-rc8 (including)6.2.9-rc8 (including)
FetchmailFetchmail6.2.9-rc9 (including)6.2.9-rc9 (including)
FetchmailFetchmail6.3.0 (including)6.3.0 (including)
FetchmailFetchmail6.3.1 (including)6.3.1 (including)
FetchmailFetchmail6.3.2 (including)6.3.2 (including)
FetchmailFetchmail6.3.3 (including)6.3.3 (including)
FetchmailFetchmail6.3.4 (including)6.3.4 (including)
FetchmailFetchmail6.3.5 (including)6.3.5 (including)
FetchmailFetchmail6.3.6 (including)6.3.6 (including)
FetchmailFetchmail6.3.6-rc1 (including)6.3.6-rc1 (including)
FetchmailFetchmail6.3.6-rc2 (including)6.3.6-rc2 (including)
FetchmailFetchmail6.3.6-rc3 (including)6.3.6-rc3 (including)
FetchmailFetchmail6.3.6-rc4 (including)6.3.6-rc4 (including)
FetchmailFetchmail6.3.6-rc5 (including)6.3.6-rc5 (including)
FetchmailFetchmail6.3.7 (including)6.3.7 (including)
FetchmailFetchmail6.3.8 (including)6.3.8 (including)
FetchmailFetchmail6.3.9 (including)6.3.9 (including)
FetchmailFetchmail6.3.9-rc2 (including)6.3.9-rc2 (including)
FetchmailFetchmail6.3.10 (including)6.3.10 (including)
FetchmailFetchmail6.3.11 (including)6.3.11 (including)
FetchmailFetchmail6.3.12 (including)6.3.12 (including)
FetchmailFetchmail6.3.13 (including)6.3.13 (including)
FetchmailFetchmail6.3.14 (including)6.3.14 (including)
FetchmailFetchmail6.3.15 (including)6.3.15 (including)
FetchmailFetchmail6.3.16 (including)6.3.16 (including)
FetchmailFetchmail6.3.17 (including)6.3.17 (including)
FetchmailFetchmail6.3.18 (including)6.3.18 (including)
FetchmailFetchmail6.3.19 (including)6.3.19 (including)
FetchmailUbuntuartful*
FetchmailUbuntucosmic*
FetchmailUbuntudisco*
FetchmailUbuntueoan*
FetchmailUbuntugroovy*
FetchmailUbuntuhardy*
FetchmailUbuntulucid*
FetchmailUbuntumaverick*
FetchmailUbuntunatty*
FetchmailUbuntuoneiric*
FetchmailUbuntuprecise*
FetchmailUbuntuquantal*
FetchmailUbunturaring*
FetchmailUbuntusaucy*
FetchmailUbuntuupstream*
FetchmailUbuntuutopic*
FetchmailUbuntuvivid*
FetchmailUbuntuwily*
FetchmailUbuntuyakkety*
FetchmailUbuntuzesty*

References

Aqua Security is the largest pure-play cloud native security company, providing customers the freedom to innovate and run their businesses with minimal friction. The Aqua Cloud Native Security Platform provides prevention, detection, and response automation across the entire application lifecycle to secure the build, secure cloud infrastructure and secure running workloads wherever they are deployed.
Copyright © 2026 Aqua Security Software Ltd.   Privacy Policy | Terms of Use