CVE-2006-1721

cyrus-sasl digest-md5 DoS

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

digestmd5.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.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

High

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2006-04-11 CVE Reserved
2006-04-11 CVE Published
2024-08-07 CVE Updated
2025-05-05 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (36)

URL	Tag	Source
http://asg.web.cmu.edu/archive/message.php?mailbox=archive.cyrus-sasl&msg=7775	X_refsource_confirm
http://lists.grok.org.uk/pipermail/full-disclosure/2006-April/044992.html	Mailing List
http://securitytracker.com/id?1016960	Vdb Entry
http://support.avaya.com/elmodocs2/security/ASA-2007-426.htm	X_refsource_confirm
http://www.securityfocus.com/archive/1/493080/100/0/threaded	Mailing List
http://www.vmware.com/security/advisories/VMSA-2008-0009.html	X_refsource_confirm
https://exchange.xforce.ibmcloud.com/vulnerabilities/25738	Vdb Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9861	Signature

URL	Date	SRC

URL	Date	SRC
http://labs.musecurity.com/advisories/MU-200604-01.txt	2018-10-18
http://secunia.com/advisories/19618	2018-10-18
http://www.securityfocus.com/bid/17446	2018-10-18

URL	Date	SRC
ftp://patches.sgi.com/support/free/security/advisories/20070901-01-P.asc	2018-10-18
http://lists.apple.com/archives/security-announce/2006/Sep/msg00002.html	2018-10-18
http://secunia.com/advisories/19753	2018-10-18
http://secunia.com/advisories/19809	2018-10-18
http://secunia.com/advisories/19825	2018-10-18
http://secunia.com/advisories/19964	2018-10-18
http://secunia.com/advisories/20014	2018-10-18
http://secunia.com/advisories/22187	2018-10-18
http://secunia.com/advisories/26708	2018-10-18
http://secunia.com/advisories/26857	2018-10-18
http://secunia.com/advisories/27237	2018-10-18
http://secunia.com/advisories/30535	2018-10-18
http://www.debian.org/security/2006/dsa-1042	2018-10-18
http://www.gentoo.org/security/en/glsa/glsa-200604-09.xml	2018-10-18
http://www.mandriva.com/security/advisories?name=MDKSA-2006:073	2018-10-18
http://www.novell.com/linux/security/advisories/2006_05_05.html	2018-10-18
http://www.redhat.com/support/errata/RHSA-2007-0795.html	2018-10-18
http://www.redhat.com/support/errata/RHSA-2007-0878.html	2018-10-18
http://www.trustix.org/errata/2006/0024	2018-10-18
http://www.vupen.com/english/advisories/2006/1306	2018-10-18
http://www.vupen.com/english/advisories/2006/3852	2018-10-18
http://www.vupen.com/english/advisories/2008/1744	2018-10-18
https://usn.ubuntu.com/272-1	2018-10-18
https://access.redhat.com/security/cve/CVE-2006-1721	2007-09-04
https://bugzilla.redhat.com/show_bug.cgi?id=189814	2007-09-04

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cyrus Search vendor "Cyrus"		Sasl Search vendor "Cyrus" for product "Sasl"				2.1.18 Search vendor "Cyrus" for product "Sasl" and version "2.1.18"		-		Affected
Cyrus Search vendor "Cyrus"		Sasl Search vendor "Cyrus" for product "Sasl"				2.1.18_r1 Search vendor "Cyrus" for product "Sasl" and version "2.1.18_r1"		-		Affected
Cyrus Search vendor "Cyrus"		Sasl Search vendor "Cyrus" for product "Sasl"				2.1.18_r2 Search vendor "Cyrus" for product "Sasl" and version "2.1.18_r2"		-		Affected
Cyrus Search vendor "Cyrus"		Sasl Search vendor "Cyrus" for product "Sasl"				2.1.19 Search vendor "Cyrus" for product "Sasl" and version "2.1.19"		-		Affected
Cyrus Search vendor "Cyrus"		Sasl Search vendor "Cyrus" for product "Sasl"				2.1.20 Search vendor "Cyrus" for product "Sasl" and version "2.1.20"		-		Affected