CVE-2002-0640

OpenSSH 3.x - Challenge-Response Buffer Overflow

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Buffer overflow in sshd in OpenSSH 2.3.1 through 3.3 may allow remote attackers to execute arbitrary code via a large number of responses during challenge response authentication when OpenBSD is using PAM modules with interactive keyboard authentication (PAMAuthenticationViaKbdInt).

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2002-06-24 First Exploit
2002-06-28 CVE Reserved
2002-07-03 CVE Published
2024-08-08 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CAPEC

References (22)

URL	Tag	Source
http://marc.info/?l=bugtraq&m=102514371522793&w=2	Mailing List
http://marc.info/?l=bugtraq&m=102514631524575&w=2	Mailing List
http://marc.info/?l=bugtraq&m=102521542826833&w=2	Mailing List
http://marc.info/?l=bugtraq&m=102532054613894&w=2	Mailing List
http://www.cert.org/advisories/CA-2002-18.html	Third Party Advisory
http://www.kb.cert.org/vuls/id/369347	Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/07/01/3	Mailing List
http://www.osvdb.org/839	Vdb Entry
http://www.securityfocus.com/bid/5093	Vdb Entry

URL	Date	SRC
https://www.exploit-db.com/exploits/21579	2002-06-24
https://www.exploit-db.com/exploits/21578	2002-06-24

URL	Date	SRC

URL	Date	SRC
ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-030.0.txt	2024-07-01
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000502	2024-07-01
http://www.debian.org/security/2002/dsa-134	2024-07-01
http://www.linuxsecurity.com/advisories/other_advisory-2177.html	2024-07-01
http://www.mandrakesoft.com/security/advisories?name=MDKSA-2002:040	2024-07-01
http://www.novell.com/linux/security/advisories/2002_024_openssh_txt.html	2024-07-01
http://www.redhat.com/support/errata/RHSA-2002-127.html	2024-07-01
http://www.redhat.com/support/errata/RHSA-2002-131.html	2024-07-01
http://www1.itrc.hp.com/service/cki/docDisplay.do?docId=HPSBUX0206-195	2024-07-01
https://access.redhat.com/security/cve/CVE-2002-0640	2002-07-12
https://bugzilla.redhat.com/show_bug.cgi?id=1616784	2002-07-12

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"				1.2.2 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"				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"				2.9p1 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"				3.2.2p1 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