CVE-2006-1721

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Summary

CVECVE-2006-1721
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2006-04-11 23:02:00 UTC
Updated2025-04-03 01:03:51 UTC
Descriptiondigestmd5.c in the CMU Cyrus Simple Authentication and Security Layer (SASL) library 2.1.18, and possibly other versions before 2.1.21, allows remote unauthenticated attackers to cause a denial of service (segmentation fault) via malformed inputs in DIGEST-MD5 negotiation.

Risk And Classification

Primary CVSS: v2.0 2.6 from [email protected]

AV:N/AC:H/Au:N/C:N/I:N/A:P

EPSS: 0.036140000 probability, percentile 0.878050000 (date 2026-04-19)

Problem Types: CWE-20 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
High
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:H/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Cyrus Sasl 2.1.18 All All All
Application Cyrus Sasl 2.1.18_r1 All All All
Application Cyrus Sasl 2.1.18_r2 All All All
Application Cyrus Sasl 2.1.19 All All All
Application Cyrus Sasl 2.1.20 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Gentoo Linux Documentation -- Cyrus-SASL: DIGEST-MD5 Pre-Authentication Denial of Service af854a3a-2127-422b-91ae-364da2661108 www.gentoo.org
Security Announcement af854a3a-2127-422b-91ae-364da2661108 www.novell.com
www.trustix.org/errata/2006/0024 af854a3a-2127-422b-91ae-364da2661108 www.trustix.org
APPLE-SA-2006-09-29 Mac OS X v10.4.8 and Security Update 2006-006 af854a3a-2127-422b-91ae-364da2661108 lists.apple.com
SecurityFocus af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Support af854a3a-2127-422b-91ae-364da2661108 www.redhat.com
Gentoo update for cyrus-sasl - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com Vendor Advisory
VMware ESX Server Multiple Security Updates - Secunia Advisories - Vulnerability Intelligence - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
Webmail - OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com Vendor Advisory
USN-272-1: cyrus-sasl2 vulnerability | Ubuntu security notices af854a3a-2127-422b-91ae-364da2661108 usn.ubuntu.com
Cyrus SASL Remote Digest-MD5 Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Patch
Support af854a3a-2127-422b-91ae-364da2661108 www.redhat.com
Mac OS X Security Update Fixes Multiple Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
Red Hat update for cyrus-sasl - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
Debian update for cyrus-sasl2 - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
Advisories - Mandriva Linux af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com
Trustix updates for multiple packages - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
archive.cyrus-sasl - 7673 af854a3a-2127-422b-91ae-364da2661108 asg.web.cmu.edu
VMSA-2008-0009.2 - VMware af854a3a-2127-422b-91ae-364da2661108 www.vmware.com
Cyrus SASL DIGEST-MD5 Pre-Authentication Denial of Service - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Patch, Vendor Advisory
ASA-2007-426 (RHSA-2007-0795) af854a3a-2127-422b-91ae-364da2661108 support.avaya.com
Avaya Products Cyrus SASL DIGEST-MD5 Pre-Authentication Denial of Service - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
labs.musecurity.com/advisories/MU-200604-01.txt af854a3a-2127-422b-91ae-364da2661108 labs.musecurity.com Patch
SUSE update for cyrus-sasl-digestmd5 - Secunia Advisories - Vulnerability Intelligence - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
SecurityTracker.com Archives - Cyrus SASL DIGEST-MD5 Negotiation Flaw Lets Remote Users Deny Service af854a3a-2127-422b-91ae-364da2661108 securitytracker.com
Debian -- Security Information -- DSA-1042-1 cyrus-sasl2 af854a3a-2127-422b-91ae-364da2661108 www.debian.org
patches.sgi.com/support/free/security/advisories/20070901-01-P.asc af854a3a-2127-422b-91ae-364da2661108 patches.sgi.com
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com
SGI Advanced Linux Environment Multiple Updates - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
[Full-disclosure] [MU-200604-01] Cyrus SASL DIGEST-MD5 Pre-Authentication Denial of Service af854a3a-2127-422b-91ae-364da2661108 lists.grok.org.uk
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com Vendor Advisory
Ubuntu update for cyrus-sasl2 - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
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