CVE-2006-4924

OpenSSH 4.3 p1 - Duplicated Block Remote Denial of Service

Severity Score

7.8

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

sshd in OpenSSH before 4.4, when using the version 1 SSH protocol, allows remote attackers to cause a denial of service (CPU consumption) via an SSH packet that contains duplicate blocks, which is not properly handled by the CRC compensation attack detector.

sshd en OpenSSH en versiones anteriores a 4.4, cuando se utiliza la versión 1 del protocolo SSH, permite a atacantes remotos provocar una denegación de servicio (consumo de CPU) a través de un paquete SSH que contiene bloques duplicados, los cuales no se manejan correctamente por el detector de ataque de compensación CRC.

*Credits: N/A

CVSS Scores

NISTv2 7.8

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2006-09-21 CVE Reserved
2006-09-27 CVE Published
2006-09-27 First Exploit
2024-08-07 CVE Updated
2024-08-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-399: Resource Management Errors

CAPEC

References (82)

URL	Tag	Source
http://blogs.sun.com/security/entry/sun_alert_102962_security_vulnerability	X_refsource_confirm
http://bugs.gentoo.org/show_bug.cgi?id=148228	X_refsource_confirm
http://docs.info.apple.com/article.html?artnum=305214	X_refsource_confirm
http://marc.info/?l=openssh-unix-dev&m=115939141729160&w=2	Mailing List
http://secunia.com/advisories/23680	Third Party Advisory
http://secunia.com/advisories/24479	Third Party Advisory
http://secunia.com/advisories/24799	Third Party Advisory
http://secunia.com/advisories/24805	Third Party Advisory
http://secunia.com/advisories/25608	Third Party Advisory
http://secunia.com/advisories/29371	Third Party Advisory
http://secunia.com/advisories/34274	Third Party Advisory
http://securitytracker.com/id?1016931	Vdb Entry
http://sourceforge.net/forum/forum.php?forum_id=681763	X_refsource_confirm
http://sourceforge.net/project/shownotes.php?release_id=461863&group_id=69227	X_refsource_confirm
http://support.avaya.com/elmodocs2/security/ASA-2006-216.htm	X_refsource_confirm
http://support.avaya.com/elmodocs2/security/ASA-2006-262.htm	X_refsource_confirm
http://www-unix.globus.org/mail_archive/security-announce/2007/04/msg00000.html	Mailing List
http://www.kb.cert.org/vuls/id/787448	Third Party Advisory
http://www.osvdb.org/29152	Vdb Entry
http://www.securityfocus.com/archive/1/447153/100/0/threaded	Mailing List
http://www.us-cert.gov/cas/techalerts/TA07-072A.html	Third Party Advisory
http://www.vmware.com/support/vi3/doc/esx-3069097-patch.html	X_refsource_confirm
http://www.vmware.com/support/vi3/doc/esx-9986131-patch.html	X_refsource_confirm
http://www.vupen.com/english/advisories/2006/3777	Vdb Entry
http://www.vupen.com/english/advisories/2006/4401	Vdb Entry
http://www.vupen.com/english/advisories/2006/4869	Vdb Entry
http://www.vupen.com/english/advisories/2007/0930	Vdb Entry
http://www.vupen.com/english/advisories/2007/1332	Vdb Entry
http://www.vupen.com/english/advisories/2007/2119	Vdb Entry
http://www.vupen.com/english/advisories/2009/0740	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/29158	Vdb Entry
https://hypersonic.bluecoat.com/support/securityadvisories/ssh_server_on_sg	X_refsource_confirm
https://issues.rpath.com/browse/RPL-661	X_refsource_confirm
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10462	Signature
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1193	Signature

URL	Date	SRC
https://www.exploit-db.com/exploits/2444	2006-09-27
http://www.securityfocus.com/bid/20216	2024-08-07

URL	Date	SRC
http://www.debian.org/security/2006/dsa-1189	2018-10-17
http://www.debian.org/security/2006/dsa-1212	2018-10-17
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=207955	2018-10-17

URL	Date	SRC
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:22.openssh.asc	2018-10-17
ftp://ftp.sco.com/pub/unixware7/714/security/p534336/p534336.txt	2018-10-17
ftp://patches.sgi.com/support/free/security/advisories/20061001-01-P.asc	2018-10-17
http://itrc.hp.com/service/cki/docDisplay.do?docId=c00815112	2018-10-17
http://lists.apple.com/archives/security-announce/2007/Mar/msg00002.html	2018-10-17
http://secunia.com/advisories/21923	2018-10-17
http://secunia.com/advisories/22091	2018-10-17
http://secunia.com/advisories/22116	2018-10-17
http://secunia.com/advisories/22158	2018-10-17
http://secunia.com/advisories/22164	2018-10-17
http://secunia.com/advisories/22183	2018-10-17
http://secunia.com/advisories/22196	2018-10-17
http://secunia.com/advisories/22208	2018-10-17
http://secunia.com/advisories/22236	2018-10-17
http://secunia.com/advisories/22245	2018-10-17
http://secunia.com/advisories/22270	2018-10-17
http://secunia.com/advisories/22298	2018-10-17
http://secunia.com/advisories/22352	2018-10-17
http://secunia.com/advisories/22362	2018-10-17
http://secunia.com/advisories/22487	2018-10-17
http://secunia.com/advisories/22495	2018-10-17
http://secunia.com/advisories/22823	2018-10-17
http://secunia.com/advisories/22926	2018-10-17
http://secunia.com/advisories/23038	2018-10-17
http://secunia.com/advisories/23241	2018-10-17
http://secunia.com/advisories/23340	2018-10-17
http://security.freebsd.org/advisories/FreeBSD-SA-06%3A22.openssh.asc	2018-10-17
http://security.gentoo.org/glsa/glsa-200609-17.xml	2018-10-17
http://security.gentoo.org/glsa/glsa-200611-06.xml	2018-10-17
http://slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.592566	2018-10-17
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102962-1	2018-10-17
http://www.mandriva.com/security/advisories?name=MDKSA-2006:179	2018-10-17
http://www.novell.com/linux/security/advisories/2006_24_sr.html	2018-10-17
http://www.novell.com/linux/security/advisories/2006_62_openssh.html	2018-10-17
http://www.openbsd.org/errata.html#ssh	2018-10-17
http://www.openpkg.org/security/advisories/OpenPKG-SA-2006.022-openssh.html	2018-10-17
http://www.redhat.com/support/errata/RHSA-2006-0697.html	2018-10-17
http://www.redhat.com/support/errata/RHSA-2006-0698.html	2018-10-17
http://www.trustix.org/errata/2006/0054	2018-10-17
http://www.ubuntu.com/usn/usn-355-1	2018-10-17
https://access.redhat.com/security/cve/CVE-2006-4924	2006-09-29
https://bugzilla.redhat.com/show_bug.cgi?id=207957	2006-09-29

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				1.2 Search vendor "Openbsd" for product "Openssh" and version "1.2"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				1.2.1 Search vendor "Openbsd" for product "Openssh" and version "1.2.1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				1.2.2 Search vendor "Openbsd" for product "Openssh" and version "1.2.2"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				1.2.3 Search vendor "Openbsd" for product "Openssh" and version "1.2.3"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				1.2.27 Search vendor "Openbsd" for product "Openssh" and version "1.2.27"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				2.1 Search vendor "Openbsd" for product "Openssh" and version "2.1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				2.1.1 Search vendor "Openbsd" for product "Openssh" and version "2.1.1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				2.2 Search vendor "Openbsd" for product "Openssh" and version "2.2"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				2.3 Search vendor "Openbsd" for product "Openssh" and version "2.3"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				2.5 Search vendor "Openbsd" for product "Openssh" and version "2.5"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				2.5.1 Search vendor "Openbsd" for product "Openssh" and version "2.5.1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				2.5.2 Search vendor "Openbsd" for product "Openssh" and version "2.5.2"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				2.9 Search vendor "Openbsd" for product "Openssh" and version "2.9"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				2.9.9 Search vendor "Openbsd" for product "Openssh" and version "2.9.9"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				2.9.9p2 Search vendor "Openbsd" for product "Openssh" and version "2.9.9p2"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				2.9p1 Search vendor "Openbsd" for product "Openssh" and version "2.9p1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				2.9p2 Search vendor "Openbsd" for product "Openssh" and version "2.9p2"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.0 Search vendor "Openbsd" for product "Openssh" and version "3.0"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.0.1 Search vendor "Openbsd" for product "Openssh" and version "3.0.1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.0.1p1 Search vendor "Openbsd" for product "Openssh" and version "3.0.1p1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.0.2 Search vendor "Openbsd" for product "Openssh" and version "3.0.2"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.0.2p1 Search vendor "Openbsd" for product "Openssh" and version "3.0.2p1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.0p1 Search vendor "Openbsd" for product "Openssh" and version "3.0p1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.1 Search vendor "Openbsd" for product "Openssh" and version "3.1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.1p1 Search vendor "Openbsd" for product "Openssh" and version "3.1p1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.2 Search vendor "Openbsd" for product "Openssh" and version "3.2"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.2.2 Search vendor "Openbsd" for product "Openssh" and version "3.2.2"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.2.2p1 Search vendor "Openbsd" for product "Openssh" and version "3.2.2p1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.2.3p1 Search vendor "Openbsd" for product "Openssh" and version "3.2.3p1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.3 Search vendor "Openbsd" for product "Openssh" and version "3.3"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.3p1 Search vendor "Openbsd" for product "Openssh" and version "3.3p1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.4 Search vendor "Openbsd" for product "Openssh" and version "3.4"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.4p1 Search vendor "Openbsd" for product "Openssh" and version "3.4p1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.5 Search vendor "Openbsd" for product "Openssh" and version "3.5"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.5p1 Search vendor "Openbsd" for product "Openssh" and version "3.5p1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.6 Search vendor "Openbsd" for product "Openssh" and version "3.6"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.6.1 Search vendor "Openbsd" for product "Openssh" and version "3.6.1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.6.1p1 Search vendor "Openbsd" for product "Openssh" and version "3.6.1p1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.6.1p2 Search vendor "Openbsd" for product "Openssh" and version "3.6.1p2"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.7 Search vendor "Openbsd" for product "Openssh" and version "3.7"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.7.1 Search vendor "Openbsd" for product "Openssh" and version "3.7.1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.7.1p1 Search vendor "Openbsd" for product "Openssh" and version "3.7.1p1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.7.1p2 Search vendor "Openbsd" for product "Openssh" and version "3.7.1p2"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.8 Search vendor "Openbsd" for product "Openssh" and version "3.8"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.8.1 Search vendor "Openbsd" for product "Openssh" and version "3.8.1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.8.1p1 Search vendor "Openbsd" for product "Openssh" and version "3.8.1p1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.9 Search vendor "Openbsd" for product "Openssh" and version "3.9"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.9.1 Search vendor "Openbsd" for product "Openssh" and version "3.9.1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				3.9.1p1 Search vendor "Openbsd" for product "Openssh" and version "3.9.1p1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				4.0 Search vendor "Openbsd" for product "Openssh" and version "4.0"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				4.0p1 Search vendor "Openbsd" for product "Openssh" and version "4.0p1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				4.1p1 Search vendor "Openbsd" for product "Openssh" and version "4.1p1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				4.2 Search vendor "Openbsd" for product "Openssh" and version "4.2"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				4.2p1 Search vendor "Openbsd" for product "Openssh" and version "4.2p1"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				4.3 Search vendor "Openbsd" for product "Openssh" and version "4.3"		-		Affected
Openbsd Search vendor "Openbsd"		Openssh Search vendor "Openbsd" for product "Openssh"				4.3p1 Search vendor "Openbsd" for product "Openssh" and version "4.3p1"		-		Affected