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Last updated: 2/11/2016 2:12:38 PM

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Vulnerability Summary for CVE-2011-1947

Original release date: 06/02/2011
Last revised: 09/06/2011


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 Severity (version 2.0):
CVSS v2 Base Score: 5.0 MEDIUM
Impact Subscore: 2.9
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows disruption of service

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External Source: MLIST
Name: [oss-security] 20110531 Re: CVE request for fetchmail STARTTLS hang (Denial of Service)
External Source: MANDRIVA
Name: MDVSA-2011:107
External Source: FEDORA
Name: FEDORA-2011-8021
External Source: CONFIRM
Name: http://gitorious.org/fetchmail/fetchmail/blobs/legacy_63/fetchmail-SA-2011-01.txt
External Source: MLIST
Name: [oss-security] 20110530 CVE request for fetchmail STARTTLS hang (Denial of Service)
External Source: SECTRACK
Name: 1025605
External Source: FEDORA
Name: FEDORA-2011-8059
External Source: XF
Name: fetchmail-starttls-dos(67700)
External Source: BUGTRAQ
Name: 20110606 fetchmail security announcement fetchmail-SA-2011-01 (CVE-2011-1947)
External Source: MLIST
Name: [oss-security] 20110601 Re: CVE request for fetchmail STARTTLS hang (Denial of Service)
External Source: BID
Name: 48043
External Source: MLIST
Name: [oss-security] 20110531 Re: CVE request for fetchmail STARTTLS hang (Denial of Service)
External Source: FEDORA
Name: FEDORA-2011-8011
External Source: CONFIRM
Name: http://www.fetchmail.info/fetchmail-SA-2011-01.txt

Vulnerable software and versions

+ Configuration 1
+ OR
* cpe:/a:fetchmail:fetchmail:5.9.11
* cpe:/a:fetchmail:fetchmail:5.9.10
* cpe:/a:fetchmail:fetchmail:5.9.13
* cpe:/a:fetchmail:fetchmail:6.3.6:rc2
* cpe:/a:fetchmail:fetchmail:6.3.6:rc1
* cpe:/a:fetchmail:fetchmail:6.1.3
* cpe:/a:fetchmail:fetchmail:6.3.19
* cpe:/a:fetchmail:fetchmail:6.3.18
* cpe:/a:fetchmail:fetchmail:6.2.4
* cpe:/a:fetchmail:fetchmail:6.3.14
* cpe:/a:fetchmail:fetchmail:6.3.13
* cpe:/a:fetchmail:fetchmail:6.3.17
* cpe:/a:fetchmail:fetchmail:6.3.16
* cpe:/a:fetchmail:fetchmail:6.3.6:rc3
* cpe:/a:fetchmail:fetchmail:6.3.15
* cpe:/a:fetchmail:fetchmail:6.3.6
* cpe:/a:fetchmail:fetchmail:6.3.6:rc4
* cpe:/a:fetchmail:fetchmail:6.3.0
* cpe:/a:fetchmail:fetchmail:6.3.6:rc5
* cpe:/a:fetchmail:fetchmail:6.3.10
* cpe:/a:fetchmail:fetchmail:6.3.9
* cpe:/a:fetchmail:fetchmail:6.3.11
* cpe:/a:fetchmail:fetchmail:6.3.8
* cpe:/a:fetchmail:fetchmail:6.2.9:rc5
* cpe:/a:fetchmail:fetchmail:6.2.6:pre9
* cpe:/a:fetchmail:fetchmail:
* cpe:/a:fetchmail:fetchmail:6.2.9:rc7
* cpe:/a:fetchmail:fetchmail:6.2.9:rc8
* cpe:/a:fetchmail:fetchmail:6.2.3
* cpe:/a:fetchmail:fetchmail:6.2.5
* cpe:/a:fetchmail:fetchmail:6.2.6:pre4
* cpe:/a:fetchmail:fetchmail:6.2.6:pre8
* cpe:/a:fetchmail:fetchmail:6.3.7
* cpe:/a:fetchmail:fetchmail:6.3.9:rc2
* cpe:/a:fetchmail:fetchmail:
* cpe:/a:fetchmail:fetchmail:
* cpe:/a:fetchmail:fetchmail:6.2.9:rc3
* cpe:/a:fetchmail:fetchmail:6.2.9:rc4
* cpe:/a:fetchmail:fetchmail:6.2.9:rc9
* cpe:/a:fetchmail:fetchmail:6.2.9:rc10
* cpe:/a:fetchmail:fetchmail:6.3.12
* cpe:/a:fetchmail:fetchmail:6.3.5
* cpe:/a:fetchmail:fetchmail:6.3.4
* cpe:/a:fetchmail:fetchmail:6.3.3
* cpe:/a:fetchmail:fetchmail:6.3.2
* cpe:/a:fetchmail:fetchmail:6.2.0
* cpe:/a:fetchmail:fetchmail:6.1.0
* cpe:/a:fetchmail:fetchmail:6.3.1
* cpe:/a:fetchmail:fetchmail:6.2.2
* cpe:/a:fetchmail:fetchmail:6.2.1
* cpe:/a:fetchmail:fetchmail:6.0.0
* cpe:/a:fetchmail:fetchmail:5.9.9

* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

Vulnerability Type (View All)
  • Resource Management Errors (CWE-399)