#VU45006 Resource management error in Fetchmail - CVE-2011-1947
Published: June 2, 2011 / Updated: August 11, 2020
Vulnerability identifier: #VU45006
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2011-1947
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Fetchmail
Fetchmail
Software vendor:
fetchmail.berlios.de
fetchmail.berlios.de
Description
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.
External links
- 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