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Test ID:1.3.6.1.4.1.25623.1.0.902223
Category:Buffer overflow
Title:Cyrus IMAP Server SIEVE Script Handling Buffer Overflow Vulnerability
Summary:Check vulnerable version of Cyrus IMAP Server
Description:
Overview: This host is running Cyrus IMAP Server and is prone to
buffer overflow vulnerability.

Vulnerability Insight:
The flaw is caused is due to error in the handling of 'SIEVE' Script, that
fails to perform adequate boundary checks on user-supplied data.

Impact:
Successful exploitation will allow attackers to crash an affected server
or execute arbitrary code via a malicious SIEVE Script.

Impact Level: Application

Affected Software/OS:
Cyrus IMAP Server versions 2.3.14 and prior.


Fix: Apply patches or upgrade to the latest version,
http://bugzilla.andrew.cmu.edu/cgi-bin/cvsweb.cgi/src/sieve/script.c.diff?r1=1.67&r2=1.68
http://bugzilla.andrew.cmu.edu/cgi-bin/cvsweb.cgi/src/sieve/script.c.diff?r1=1.62&r2=1.62.2.1&only_with_tag=cyrus-imapd-2_2-tail

*****
NOTE: Ignore this warning if above mentioned patch is already applied.
*****

References:
http://www.debian.org/security/2009/dsa-1881
http://www.vupen.com/english/advisories/2009/2559
https://www.redhat.com/archives/fedora-package-announce/2009-September/msg00491.html
Cross-Ref: BugTraq ID: 36296
BugTraq ID: 36377
Common Vulnerability Exposure (CVE) ID: CVE-2009-2632
https://lists.andrew.cmu.edu/pipermail/cyrus-cvs/2009-September/001253.html
https://lists.andrew.cmu.edu/pipermail/cyrus-cvs/2009-September/001254.html
http://dovecot.org/list/dovecot-news/2009-September/000135.html
http://www.openwall.com/lists/oss-security/2009/09/14/3
http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
Debian Security Information: DSA-1881 (Google Search)
http://www.debian.org/security/2009/dsa-1881
https://www.redhat.com/archives/fedora-package-announce/2009-September/msg00491.html
SuSE Security Announcement: SUSE-SR:2009:016 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00001.html
http://www.ubuntu.com/usn/USN-838-1
http://www.securityfocus.com/bid/36296
http://www.securityfocus.com/bid/36377
http://www.osvdb.org/58103
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:10082
http://secunia.com/advisories/36629
http://secunia.com/advisories/36632
http://secunia.com/advisories/36698
http://secunia.com/advisories/36713
http://secunia.com/advisories/36904
http://www.vupen.com/english/advisories/2009/2559
http://www.vupen.com/english/advisories/2009/2641
CopyrightCopyright (C) 2010 SecPod

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