National Cyber Awareness System

Vulnerability Summary for CVE-2011-1947

Overview

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.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: XF

Name: fetchmail-starttls-dos(67700)

Hyperlink:http://xforce.iss.net/xforce/xfdb/67700

External Source: SECTRACK

Name: 1025605

Hyperlink:http://www.securitytracker.com/id?1025605

External Source: BID

Name: 48043

Hyperlink:http://www.securityfocus.com/bid/48043

External Source: BUGTRAQ

Name: 20110606 fetchmail security announcement fetchmail-SA-2011-01 (CVE-2011-1947)

Hyperlink:http://www.securityfocus.com/archive/1/archive/1/518251/100/0/threaded

External Source: MANDRIVA

Name: MDVSA-2011:107

Hyperlink:http://www.mandriva.com/security/advisories?name=MDVSA-2011:107

External Source: CONFIRM

Name: http://www.fetchmail.info/fetchmail-SA-2011-01.txt

Hyperlink:http://www.fetchmail.info/fetchmail-SA-2011-01.txt

External Source: MLIST

Name: [oss-security] 20110601 Re: CVE request for fetchmail STARTTLS hang (Denial of Service)

Hyperlink:http://openwall.com/lists/oss-security/2011/06/01/2

External Source: MLIST

Name: [oss-security] 20110531 Re: CVE request for fetchmail STARTTLS hang (Denial of Service)

Hyperlink:http://openwall.com/lists/oss-security/2011/05/31/17

External Source: MLIST

Name: [oss-security] 20110531 Re: CVE request for fetchmail STARTTLS hang (Denial of Service)

Hyperlink:http://openwall.com/lists/oss-security/2011/05/31/12

External Source: MLIST

Name: [oss-security] 20110530 CVE request for fetchmail STARTTLS hang (Denial of Service)

Hyperlink:http://openwall.com/lists/oss-security/2011/05/30/1

External Source: FEDORA

Name: FEDORA-2011-8021

Hyperlink:http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061735.html

External Source: FEDORA

Name: FEDORA-2011-8011

Hyperlink:http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061672.html

External Source: FEDORA

Name: FEDORA-2011-8059

Hyperlink:http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061634.html

External Source: CONFIRM

Name: http://gitorious.org/fetchmail/fetchmail/blobs/legacy_63/fetchmail-SA-2011-01.txt

Hyperlink:http://gitorious.org/fetchmail/fetchmail/blobs/legacy_63/fetchmail-SA-2011-01.txt