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Family: Gentoo Local Security Checks --> Category: infos
[GLSA-200507-21] fetchmail: Buffer Overflow Vulnerability Scan
Vulnerability Scan Summary
fetchmail: Buffer Overflow
Detailed Explanation for this Vulnerability Test
The remote host is affected by the vulnerability described in GLSA-200507-21
(fetchmail: Buffer Overflow)
fetchmail does not properly validate UIDs coming from a POP3 mail
server. The UID is placed in a fixed length buffer on the stack, which
can be overflown.
Impact
Very long UIDs returned from a malicious or compromised POP3
server can cause fetchmail to crash, resulting in a Denial of Service,
or allow arbitrary code to be placed on the stack.
Workaround
There are no known workarounds at this time.
References:
http://fetchmail.berlios.de/fetchmail-SA-2005-01.txt
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2335
Solution:
All fetchmail users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-mail/fetchmail-6.2.5.2"
Threat Level: Medium
Click HERE for more information and discussions on this network vulnerability scan.
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