7.8
HIGH
CVE-2006-2940
OpenSSL Denial of Service Vulnerability
Description
OpenSSL 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.
INFO
Published Date :
Sept. 28, 2006, 6:07 p.m.
Last Modified :
April 9, 2025, 12:30 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
6.9
Exploitability Score :
10.0
Public PoC/Exploit Available at Github
CVE-2006-2940 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2006-2940.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Updated: 2 days, 7 hours ago
6 stars
0 fork
0 watcher
Born at : Feb. 23, 2023, 5:42 a.m.
This repo has been linked 471 different CVEs too.
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2006-2940 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2006-2940 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2008-007.txt.asc Added Reference ftp://patches.sgi.com/support/free/security/advisories/20061001-01-P.asc Added Reference http://docs.info.apple.com/article.html?artnum=304829 Added Reference http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01118771 Added Reference http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01118771 Added Reference http://issues.rpath.com/browse/RPL-613 Added Reference http://itrc.hp.com/service/cki/docDisplay.do?docId=c00805100 Added Reference http://itrc.hp.com/service/cki/docDisplay.do?docId=c00805100 Added Reference http://itrc.hp.com/service/cki/docDisplay.do?docId=c00849540 Added Reference http://itrc.hp.com/service/cki/docDisplay.do?docId=c00849540 Added Reference http://kolab.org/security/kolab-vendor-notice-11.txt Added Reference http://lists.apple.com/archives/security-announce/2006/Nov/msg00001.html Added Reference http://lists.grok.org.uk/pipermail/full-disclosure/2006-September/049715.html Added Reference http://lists.vmware.com/pipermail/security-announce/2008/000008.html Added Reference http://marc.info/?l=bind-announce&m=116253119512445&w=2 Added Reference http://marc.info/?l=bugtraq&m=130497311408250&w=2 Added Reference http://marc.info/?l=bugtraq&m=130497311408250&w=2 Added Reference http://openbsd.org/errata.html#openssl2 Added Reference http://openvpn.net/changelog.html Added Reference http://secunia.com/advisories/22094 Added Reference http://secunia.com/advisories/22116 Added Reference http://secunia.com/advisories/22130 Added Reference http://secunia.com/advisories/22165 Added Reference http://secunia.com/advisories/22166 Added Reference http://secunia.com/advisories/22172 Added Reference http://secunia.com/advisories/22186 Added Reference http://secunia.com/advisories/22193 Added Reference http://secunia.com/advisories/22207 Added Reference http://secunia.com/advisories/22212 Added Reference http://secunia.com/advisories/22216 Added Reference http://secunia.com/advisories/22220 Added Reference http://secunia.com/advisories/22240 Added Reference http://secunia.com/advisories/22259 Added Reference http://secunia.com/advisories/22260 Added Reference http://secunia.com/advisories/22284 Added Reference http://secunia.com/advisories/22298 Added Reference http://secunia.com/advisories/22330 Added Reference http://secunia.com/advisories/22385 Added Reference http://secunia.com/advisories/22460 Added Reference http://secunia.com/advisories/22487 Added Reference http://secunia.com/advisories/22500 Added Reference http://secunia.com/advisories/22544 Added Reference http://secunia.com/advisories/22626 Added Reference http://secunia.com/advisories/22671 Added Reference http://secunia.com/advisories/22758 Added Reference http://secunia.com/advisories/22772 Added Reference http://secunia.com/advisories/22799 Added Reference http://secunia.com/advisories/23038 Added Reference http://secunia.com/advisories/23155 Added Reference http://secunia.com/advisories/23280 Added Reference http://secunia.com/advisories/23309 Added Reference http://secunia.com/advisories/23340 Added Reference http://secunia.com/advisories/23351 Added Reference http://secunia.com/advisories/23680 Added Reference http://secunia.com/advisories/23794 Added Reference http://secunia.com/advisories/23915 Added Reference http://secunia.com/advisories/24930 Added Reference http://secunia.com/advisories/24950 Added Reference http://secunia.com/advisories/25889 Added Reference http://secunia.com/advisories/26329 Added Reference http://secunia.com/advisories/26893 Added Reference http://secunia.com/advisories/30124 Added Reference http://secunia.com/advisories/31492 Added Reference http://secunia.com/advisories/31531 Added Reference http://security.freebsd.org/advisories/FreeBSD-SA-06:23.openssl.asc Added Reference http://security.gentoo.org/glsa/glsa-200610-11.xml Added Reference http://securitytracker.com/id?1016943 Added Reference http://securitytracker.com/id?1017522 Added Reference http://slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.676946 Added Reference http://sourceforge.net/project/shownotes.php?release_id=461863&group_id=69227 Added Reference http://sunsolve.sun.com/search/document.do?assetkey=1-26-102668-1 Added Reference http://sunsolve.sun.com/search/document.do?assetkey=1-26-102747-1 Added Reference http://sunsolve.sun.com/search/document.do?assetkey=1-66-200585-1 Added Reference http://sunsolve.sun.com/search/document.do?assetkey=1-66-201534-1 Added Reference http://support.attachmate.com/techdocs/2374.html Added Reference http://support.avaya.com/elmodocs2/security/ASA-2006-220.htm Added Reference http://support.avaya.com/elmodocs2/security/ASA-2006-260.htm Added Reference http://www.arkoon.fr/upload/alertes/37AK-2006-06-FR-1.1_FAST360_OPENSSL_ASN1.pdf Added Reference http://www.arkoon.fr/upload/alertes/41AK-2006-08-FR-1.1_SSL360_OPENSSL_ASN1.pdf Added Reference http://www.cisco.com/en/US/products/hw/contnetw/ps4162/tsd_products_security_response09186a008077af1b.html Added Reference http://www.cisco.com/warp/public/707/cisco-sr-20061108-openssl.shtml Added Reference http://www.debian.org/security/2006/dsa-1185 Added Reference http://www.debian.org/security/2006/dsa-1195 Added Reference http://www.gentoo.org/security/en/glsa/glsa-200612-11.xml Added Reference http://www.mandriva.com/security/advisories?name=MDKSA-2006:172 Added Reference http://www.mandriva.com/security/advisories?name=MDKSA-2006:177 Added Reference http://www.mandriva.com/security/advisories?name=MDKSA-2006:178 Added Reference http://www.novell.com/linux/security/advisories/2006_24_sr.html Added Reference http://www.novell.com/linux/security/advisories/2006_58_openssl.html Added Reference http://www.openpkg.org/security/advisories/OpenPKG-SA-2006.021-openssl.html Added Reference http://www.openssl.org/news/secadv_20060928.txt Added Reference http://www.oracle.com/technetwork/topics/security/cpujan2007-101493.html Added Reference http://www.osvdb.org/29261 Added Reference http://www.redhat.com/support/errata/RHSA-2006-0695.html Added Reference http://www.redhat.com/support/errata/RHSA-2008-0629.html Added Reference http://www.securityfocus.com/archive/1/447318/100/0/threaded Added Reference http://www.securityfocus.com/archive/1/447393/100/0/threaded Added Reference http://www.securityfocus.com/archive/1/456546/100/200/threaded Added Reference http://www.securityfocus.com/archive/1/489739/100/0/threaded Added Reference http://www.securityfocus.com/bid/20247 Added Reference http://www.securityfocus.com/bid/22083 Added Reference http://www.securityfocus.com/bid/28276 Added Reference http://www.serv-u.com/releasenotes/ Added Reference http://www.trustix.org/errata/2006/0054 Added Reference http://www.ubuntu.com/usn/usn-353-1 Added Reference http://www.ubuntu.com/usn/usn-353-2 Added Reference http://www.uniras.gov.uk/niscc/docs/re-20060928-00661.pdf?lang=en Added Reference http://www.us-cert.gov/cas/techalerts/TA06-333A.html Added Reference http://www.vmware.com/security/advisories/VMSA-2008-0005.html Added Reference http://www.vmware.com/support/ace2/doc/releasenotes_ace2.html Added Reference http://www.vmware.com/support/esx2/doc/esx-202-200612-patch.html Added Reference http://www.vmware.com/support/esx21/doc/esx-213-200612-patch.html Added Reference http://www.vmware.com/support/esx25/doc/esx-253-200612-patch.html Added Reference http://www.vmware.com/support/esx25/doc/esx-254-200612-patch.html Added Reference http://www.vmware.com/support/player/doc/releasenotes_player.html Added Reference http://www.vmware.com/support/player2/doc/releasenotes_player2.html Added Reference http://www.vmware.com/support/server/doc/releasenotes_server.html Added Reference http://www.vmware.com/support/vi3/doc/esx-3069097-patch.html Added Reference http://www.vmware.com/support/vi3/doc/esx-9986131-patch.html Added Reference http://www.vmware.com/support/ws55/doc/releasenotes_ws55.html Added Reference http://www.vmware.com/support/ws6/doc/releasenotes_ws6.html Added Reference http://www.vupen.com/english/advisories/2006/3820 Added Reference http://www.vupen.com/english/advisories/2006/3860 Added Reference http://www.vupen.com/english/advisories/2006/3869 Added Reference http://www.vupen.com/english/advisories/2006/3902 Added Reference http://www.vupen.com/english/advisories/2006/3936 Added Reference http://www.vupen.com/english/advisories/2006/4019 Added Reference http://www.vupen.com/english/advisories/2006/4036 Added Reference http://www.vupen.com/english/advisories/2006/4264 Added Reference http://www.vupen.com/english/advisories/2006/4327 Added Reference http://www.vupen.com/english/advisories/2006/4329 Added Reference http://www.vupen.com/english/advisories/2006/4401 Added Reference http://www.vupen.com/english/advisories/2006/4417 Added Reference http://www.vupen.com/english/advisories/2006/4750 Added Reference http://www.vupen.com/english/advisories/2006/4980 Added Reference http://www.vupen.com/english/advisories/2007/0343 Added Reference http://www.vupen.com/english/advisories/2007/1401 Added Reference http://www.vupen.com/english/advisories/2007/2315 Added Reference http://www.vupen.com/english/advisories/2007/2783 Added Reference http://www.vupen.com/english/advisories/2008/0905/references Added Reference http://www.vupen.com/english/advisories/2008/2396 Added Reference http://www.xerox.com/downloads/usa/en/c/cert_ESSNetwork_XRX07001_v1.pdf Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/29230 Added Reference https://issues.rpath.com/browse/RPL-1633 Added Reference https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10311 Added Reference https://www2.itrc.hp.com/service/cki/docDisplay.do?docId=c00967144 Added Reference https://www2.itrc.hp.com/service/cki/docDisplay.do?docId=c00967144 Added Reference https://www2.itrc.hp.com/service/cki/docDisplay.do?docId=c00967144 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Oct. 18, 2018
Action Type Old Value New Value Removed Reference http://www.securityfocus.com/archive/1/archive/1/489739/100/0/threaded [No Types Assigned] Removed Reference http://www.securityfocus.com/archive/1/archive/1/447393/100/0/threaded [No Types Assigned] Removed Reference http://www.securityfocus.com/archive/1/archive/1/456546/100/200/threaded [No Types Assigned] Removed Reference http://www.securityfocus.com/archive/1/archive/1/447318/100/0/threaded [No Types Assigned] Added Reference http://www.securityfocus.com/archive/1/489739/100/0/threaded [No Types Assigned] Added Reference http://www.securityfocus.com/archive/1/456546/100/200/threaded [No Types Assigned] Added Reference http://www.securityfocus.com/archive/1/447393/100/0/threaded [No Types Assigned] Added Reference http://www.securityfocus.com/archive/1/447318/100/0/threaded [No Types Assigned] -
CVE Modified by [email protected]
Oct. 11, 2017
Action Type Old Value New Value Removed Reference http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:10311 [No Types Assigned] Added Reference https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10311 [No Types Assigned] -
CVE Modified by [email protected]
Jul. 20, 2017
Action Type Old Value New Value Removed Reference http://xforce.iss.net/xforce/xfdb/29230 [No Types Assigned] Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/29230 [No Types Assigned] -
CVE Translated by [email protected]
Oct. 20, 2016
Action Type Old Value New Value Removed Translation OpenSSL 0.9.7 anterior a 0.9.7l, 0.9.8 anterior a 0.9.8d, y versiones anteriores permiten a atacantes remotos provocar una denegación de servicio (consumo de CPU) mediante ciertas claves públicas con valores largos (1) "exponentes públicos" o (2) "modulos públicos" en certificados X.509 que requieren tiempo extra para ser procesadas utilizando la firma de verificación. Added Translation OpenSSL 0.9.7 en versiones anteriores a 0.9.7l, 0.9.8 en versiones anteriores a 0.9.8d y versiones anteriores permite a atacantes provocar una denegación de servicio (consumo de CPU) a través de claves públicas parasitarias con valores grandes de (1) "exponente público" o (2) "módulo público" en certificados X.509 que requiere tiempo extra de procesamiento cuando utiliza una verificación de firma RSA. -
CVE Modified by [email protected]
Oct. 18, 2016
Action Type Old Value New Value Removed Reference http://marc.theaimsgroup.com/?l=bind-announce&m=116253119512445&w=2 Added Reference http://marc.info/?l=bind-announce&m=116253119512445&w=2 -
Initial Analysis by [email protected]
Oct. 02, 2006
Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2006-2940 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2006-2940
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
16.63 }} -2.20%
score
0.94353
percentile
CVSS2 - Vulnerability Scoring System
Access Vector
Access Complexity
Authentication
Confidentiality
Integrity
Availability