SB2011060202 - Resource management error in fetchmail.berlios.de Fetchmail
Published: June 2, 2011 Updated: August 11, 2020
Security Bulletin ID
SB2011060202
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource management error (CVE-ID: CVE-2011-1947)
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
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.
Remediation
Install update from vendor's website.
References
- http://gitorious.org/fetchmail/fetchmail/blobs/legacy_63/fetchmail-SA-2011-01.txt
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061634.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061672.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061735.html
- http://openwall.com/lists/oss-security/2011/05/30/1
- http://openwall.com/lists/oss-security/2011/05/31/12
- http://openwall.com/lists/oss-security/2011/05/31/17
- http://openwall.com/lists/oss-security/2011/06/01/2
- http://www.fetchmail.info/fetchmail-SA-2011-01.txt
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:107
- http://www.securityfocus.com/archive/1/518251/100/0/threaded
- http://www.securityfocus.com/bid/48043
- http://www.securitytracker.com/id?1025605
- https://exchange.xforce.ibmcloud.com/vulnerabilities/67700