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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200507-21] fetchmail: Buffer Overflow


Vulnerability Assessment Details

[GLSA-200507-21] fetchmail: Buffer Overflow

Vulnerability Assessment Summary
fetchmail: Buffer Overflow

Detailed Explanation for this Vulnerability Assessment
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 permit 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"


Network Security Threat Level: Medium


Networks Security ID:

Vulnerability Assessment Copyright: (C) 2005 Michel Arboi

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