CVE-2006-2940

Summary

CVECVE-2006-2940
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2006-09-28 18:07:00 UTC
Updated2026-04-23 00:35:47 UTC
DescriptionOpenSSL 0.9.7 before 0.9.7l, 0.9.8 before 0.9.8d, and earlier versions allows attackers to cause a denial of service (CPU consumption) via parasitic public keys with large (1) "public exponent" or (2) "public modulus" values in X.509 certificates that require extra time to process when using RSA signature verification.

Risk And Classification

Primary CVSS: v2.0 7.8 from [email protected]

AV:N/AC:L/Au:N/C:N/I:N/A:C

Problem Types: CWE-399 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

AV:N/AC:L/Au:N/C:N/I:N/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Openssl Openssl 0.9.1c All All All
Application Openssl Openssl 0.9.2b All All All
Application Openssl Openssl 0.9.3 All All All
Application Openssl Openssl 0.9.3a All All All
Application Openssl Openssl 0.9.4 All All All
Application Openssl Openssl 0.9.5 All All All
Application Openssl Openssl 0.9.5 beta1 All All
Application Openssl Openssl 0.9.5 beta2 All All
Application Openssl Openssl 0.9.5a All All All
Application Openssl Openssl 0.9.5a beta1 All All
Application Openssl Openssl 0.9.5a beta2 All All
Application Openssl Openssl 0.9.6 All All All
Application Openssl Openssl 0.9.6 beta1 All All
Application Openssl Openssl 0.9.6 beta2 All All
Application Openssl Openssl 0.9.6 beta3 All All
Application Openssl Openssl 0.9.6a All All All
Application Openssl Openssl 0.9.6a beta1 All All
Application Openssl Openssl 0.9.6a beta2 All All
Application Openssl Openssl 0.9.6a beta3 All All
Application Openssl Openssl 0.9.6b All All All
Application Openssl Openssl 0.9.6c All All All
Application Openssl Openssl 0.9.6d All All All
Application Openssl Openssl 0.9.6e All All All
Application Openssl Openssl 0.9.6f All All All
Application Openssl Openssl 0.9.6g All All All
Application Openssl Openssl 0.9.6h All All All
Application Openssl Openssl 0.9.6i All All All
Application Openssl Openssl 0.9.6j All All All
Application Openssl Openssl 0.9.6k All All All
Application Openssl Openssl 0.9.6l All All All
Application Openssl Openssl 0.9.6m All All All
Application Openssl Openssl 0.9.7 All All All
Application Openssl Openssl 0.9.7a All All All
Application Openssl Openssl 0.9.7b All All All
Application Openssl Openssl 0.9.7c All All All
Application Openssl Openssl 0.9.7d All All All
Application Openssl Openssl 0.9.7e All All All
Application Openssl Openssl 0.9.7f All All All
Application Openssl Openssl 0.9.7g All All All
Application Openssl Openssl 0.9.7h All All All
Application Openssl Openssl 0.9.7i All All All
Application Openssl Openssl 0.9.7j All All All
Application Openssl Openssl 0.9.7k All All All
Application Openssl Openssl 0.9.8 All All All
Application Openssl Openssl 0.9.8a All All All
Application Openssl Openssl 0.9.8b All All All
Application Openssl Openssl 0.9.8c All All All

Vendor Declared Affected Products

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

References

ReferenceSourceLinkTags
Cisco Security Response: Multiple Vulnerabilities in OpenSSL Library  [Cisco GSS 4400 Series Global Site Selector Appliances] - Cisco Systems af854a3a-2127-422b-91ae-364da2661108 www.cisco.com
Mandriva update for MySQL - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
Kolab Server Multiple Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
Reflection for Secure IT Multiple Vulnerabilities - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com
[#RPL-613] openssl vulnerabilities including remote unauthorized access: CVE-2006-2937 CVE-2006-2940 CVE-2006-3738 CVE-2006-4343 - rPath JIRA af854a3a-2127-422b-91ae-364da2661108 issues.rpath.com
Webmail - OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
VMware Player Release Notes af854a3a-2127-422b-91ae-364da2661108 www.vmware.com
Gentoo update for emul-linux-x86-baselibs - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
HP-UX update for OpenSSL - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
Debian update for openssl - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
SecurityTracker.com Archives - Oracle Database and Other Products Have 52 Unspecified Vulnerabilities With Unspecified Impact af854a3a-2127-422b-91ae-364da2661108 securitytracker.com
Advisories - Mandriva Linux af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com
[Full-disclosure] [SECURITY] OpenSSL 0.9.8d and 0.9.7l released af854a3a-2127-422b-91ae-364da2661108 lists.grok.org.uk
Oracle Products Multiple Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
[Security-announce] VMSA-2008-0005 Updated VMware Workstation, VMware Player, VMware Server, VMware ACE, and VMware Fusion resolve critical security issues af854a3a-2127-422b-91ae-364da2661108 lists.vmware.com
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
rPath update for openssl - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
IBM HMC OpenSSH / OpenSSL Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
patches.sgi.com/support/free/security/advisories/20061001-01-P.asc af854a3a-2127-422b-91ae-364da2661108 patches.sgi.com
www2.itrc.hp.com/service/cki/docDisplay.do af854a3a-2127-422b-91ae-364da2661108 www2.itrc.hp.com
BIND OpenSSL Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
Gentoo update for openssl - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
'[security bulletin] HPSBOV02683 SSRT090208 rev.1 - HP Secure Web Server (SWS) for OpenVMS running Ap' - MARC af854a3a-2127-422b-91ae-364da2661108 marc.info
Debian update for openssl096 - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
Download Patch ESX-3069097 for VMware ESX Server 3.0.1 af854a3a-2127-422b-91ae-364da2661108 www.vmware.com
OpenBSD 4.0 errata af854a3a-2127-422b-91ae-364da2661108 openbsd.org
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
Mandriva update for openssl - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com
ASA-2006-260 HP-UX OpenSSL Denial of Service (DoS), Increase Privilige (HPSBUX02174) af854a3a-2127-422b-91ae-364da2661108 support.avaya.com
Mandriva update for ntp - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
Support af854a3a-2127-422b-91ae-364da2661108 www.redhat.com
'Internet Systems Consortium Security Advisory. [revised]' - MARC af854a3a-2127-422b-91ae-364da2661108 marc.info
IT Resource Center - login / register af854a3a-2127-422b-91ae-364da2661108 itrc.hp.com
Avaya Products OpenSSL Multiple Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
Webmail - OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
www.arkoon.fr/upload/alertes/37AK-2006-06-FR-1.1_FAST360_OPENSSL_ASN1.pdf af854a3a-2127-422b-91ae-364da2661108 www.arkoon.fr
Trustix updates for openssh and openssl - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
VMware Server Release Notes af854a3a-2127-422b-91ae-364da2661108 www.vmware.com
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
VMSA-2008-0005.1 - VMware af854a3a-2127-422b-91ae-364da2661108 www.vmware.com
OpenBSD update for OpenSSL - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
Webmail - OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
Gentoo Linux Documentation -- OpenSSL: Multiple vulnerabilities af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
APPLE-SA-2006-11-28 Security Update 2006-007 af854a3a-2127-422b-91ae-364da2661108 lists.apple.com
SUSE update for openssl - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
HP System Management Homepage Apache and OpenSSL Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
Oracle January 2007 Security Update Multiple Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Serv-U FTP Server OpenSSL Multiple Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
VMWare ESX Server Multiple Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
www.xerox.com/downloads/usa/en/c/cert_ESSNetwork_XRX07001_v1.pdf af854a3a-2127-422b-91ae-364da2661108 www.xerox.com
VMware ESX Server 2.1.3 Upgrade Patch 4 (for 2.1.3 Systems) af854a3a-2127-422b-91ae-364da2661108 www.vmware.com
SecurityTracker.com Archives - OpenSSL ASN.1 Bugs, SSL_get_shared_ciphers() Buffer Overflow, and SSLv2 Client Error Lets Remote Users Denial of Service or Execute Arbitrary Code af854a3a-2127-422b-91ae-364da2661108 securitytracker.com
VMware ACE Release Notes af854a3a-2127-422b-91ae-364da2661108 www.vmware.com
Advisories - Mandriva Linux af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com
OpenPKG Corporation: Security: Security Advisories af854a3a-2127-422b-91ae-364da2661108 www.openpkg.org
Xerox ESS/ Network Controller OpenSSL Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
Download Patch ESX-9986131 for VMware ESX Server 3.0.1 af854a3a-2127-422b-91ae-364da2661108 www.vmware.com
Webmail - OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
www.trustix.org/errata/2006/0054 af854a3a-2127-422b-91ae-364da2661108 www.trustix.org
SourceForge.net: SysAdmin Tools from ITeF!x: Files af854a3a-2127-422b-91ae-364da2661108 sourceforge.net
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
Cisco Products OpenSSL Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
NetBSD update for OpenSSL - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
VMware ESX Server 2.0.2 Upgrade Patch 4 (for 2.0.2 Systems) af854a3a-2127-422b-91ae-364da2661108 www.vmware.com
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
Slackware update for openssl - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
SecurityFocus af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Mac OS X Security Update Fixes Multiple Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
support.attachmate.com/techdocs/2374.html af854a3a-2127-422b-91ae-364da2661108 support.attachmate.com
FileZilla / FileZilla Server Multiple Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
www.osvdb.org/29261 af854a3a-2127-422b-91ae-364da2661108 www.osvdb.org
rhn.redhat.com | Red Hat Support af854a3a-2127-422b-91ae-364da2661108 www.redhat.com Vendor Advisory
Gentoo Linux Documentation -- AMD64 x86 emulation base libraries: OpenSSL multiple vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.gentoo.org
issues.rpath.com/browse/RPL-1633 af854a3a-2127-422b-91ae-364da2661108 issues.rpath.com
About the security content of Security Update 2006-007 af854a3a-2127-422b-91ae-364da2661108 docs.info.apple.com
OpenSSL Public Key Processing Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Cisco Products OpenSSL Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
VMware Workstation 6 Release Notes af854a3a-2127-422b-91ae-364da2661108 www.vmware.com
Advisories - Mandriva Linux af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com
security.freebsd.org/advisories/FreeBSD-SA-06:23.openssl.asc af854a3a-2127-422b-91ae-364da2661108 security.freebsd.org
OpenSSL Multiple Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
Webmail - OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
Solaris OpenSSL Denial of Service Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
VMware Player Release Notes af854a3a-2127-422b-91ae-364da2661108 www.vmware.com
ASA-2006-220 (RHSA-2006-0695) af854a3a-2127-422b-91ae-364da2661108 support.avaya.com
Sun Grid Engine Multiple OpenSSL Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
Oracle Critical Patch Update - January 2007 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
Ubuntu update for openssl - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
SecurityFocus af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
SnapGear Multiple Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
rPath update for openssl - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
SGI Advanced Linux Environment Multiple Updates - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
usn/usn-353-2 - Ubuntu: Linux for human beings af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
SecurityFocus af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Security Announcement af854a3a-2127-422b-91ae-364da2661108 www.novell.com
rPath update for openssl - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
Debian -- Security Information -- DSA-1195-1 openssl096 af854a3a-2127-422b-91ae-364da2661108 www.debian.org
#102747: Security Vulnerabilities in OpenSSL May Lead to a Denial of Service (DoS) to Applications af854a3a-2127-422b-91ae-364da2661108 sunsolve.sun.com
Red Hat Network Satellite Server Update for Solaris Client - Advisories - Community af854a3a-2127-422b-91ae-364da2661108 secunia.com
VMware Workstation 5.5 Release Notes af854a3a-2127-422b-91ae-364da2661108 www.vmware.com
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
Serv-U Release Notes - Current af854a3a-2127-422b-91ae-364da2661108 www.serv-u.com
Webmail - OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2008-007.txt.asc af854a3a-2127-422b-91ae-364da2661108 ftp.netbsd.org
cwRsync OpenSSL Vulnerabilities and OpenSSH Weakness - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
Webmail - OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
Webmail - OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
www.openssl.org/news/secadv_20060928.txt af854a3a-2127-422b-91ae-364da2661108 www.openssl.org
sunsolve.sun.com/search/document.do af854a3a-2127-422b-91ae-364da2661108 sunsolve.sun.com
SUSE updates for openssh, openssl, and bind9 - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
usn/usn-353-1 - Ubuntu: Linux for human beings af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
Cisco - Networking, Cloud, and Cybersecurity Solutions af854a3a-2127-422b-91ae-364da2661108 www.cisco.com
SecurityFocus af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Security Announcement af854a3a-2127-422b-91ae-364da2661108 www.novell.com
US-CERT Technical Cyber Security Alert TA06-333A -- Apple Releases Security Update to Address Multiple Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.us-cert.gov US Government Resource
HP Insight Management Agents SSL Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
www.arkoon.fr/upload/alertes/41AK-2006-08-FR-1.1_SSL360_OPENSSL_ASN1.pdf af854a3a-2127-422b-91ae-364da2661108 www.arkoon.fr
#102668: Security Vulnerabilities In OpenSSL Affect Sun Grid Engine 5.3 and N1 Grid Engine 6.0 af854a3a-2127-422b-91ae-364da2661108 sunsolve.sun.com
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
VMware Server 1.0.5 and Workstation 6.0.3 Multiple Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
IT Resource Center - login / register af854a3a-2127-422b-91ae-364da2661108 itrc.hp.com
OpenVPN 2.0.x Change Log af854a3a-2127-422b-91ae-364da2661108 openvpn.net
Webmail - OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
Avaya PDS HP-UX Secure Shell / OpenSSL Multiple Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
HPSBMA02250 SSRT061275 rev.1 - HP System Management Homepage (SMH) for Linux and Windows, Remote Execution of Arbitrary Code and Denial of Service (DoS) - c01118771 - HP Business Support Center af854a3a-2127-422b-91ae-364da2661108 h20000.www2.hp.com
HP Tru64 UNIX Multiple SSL and BIND Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
The Slackware Linux Project: Slackware Security Advisories af854a3a-2127-422b-91ae-364da2661108 slackware.com
VMware ESX Server 2.5.4 Upgrade Patch 3 (for 2.5.4 Systems Only) af854a3a-2127-422b-91ae-364da2661108 www.vmware.com
Red Hat update for openssl - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
404 Not Found af854a3a-2127-422b-91ae-364da2661108 kolab.org
www.uniras.gov.uk/niscc/docs/re-20060928-00661.pdf af854a3a-2127-422b-91ae-364da2661108 www.uniras.gov.uk
Debian -- Security Information -- DSA-1185-2 openssl af854a3a-2127-422b-91ae-364da2661108 www.debian.org
FreeBSD update for openssl - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
sunsolve.sun.com/search/document.do af854a3a-2127-422b-91ae-364da2661108 sunsolve.sun.com
Webmail - OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
HP-UX update for Apache - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
VMware ESX Server 2.5.3 Upgrade Patch 6 (for 2.5.3 Systems) af854a3a-2127-422b-91ae-364da2661108 www.vmware.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

OrganizationPublishedContributorStatement
Red Hat2007-03-14Mark J CoxRed Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch.

Legacy QID Mappings

  • 390284 Oracle Managed Virtualization (VM) Server for x86 Security Update for Open Secure Sockets Layer (OpenSSL) (OVMSA-2023-0013)
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