CVE-2006-4339

Public on

Last Modified: UTC

Critical Critical Impact What does this mean?
9.1 CVSS v3 Base Score

Description

A flaw was found in OpenSSL. When configured to use an RSA key with exponent 3, OpenSSL improperly removes PKCS-1 padding before generating a hash. This allows remote attackers to forge PKCS #1 v1.5 signatures. Consequently, OpenSSL may incorrectly verify X.509 and other certificates, leading to a bypass of trust and authentication mechanisms.

Mitigation

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Additional Information

External References

Content from www.cve.org is not included.https://www.cve.org/CVERecord?id=CVE-2006-4339

Content from nvd.nist.gov is not included.https://nvd.nist.gov/vuln/detail/CVE-2006-4339

Content from dev2dev.bea.com is not included.http://dev2dev.bea.com/pub/advisory/238

Content from docs.info.apple.com is not included.http://docs.info.apple.com/article.html?artnum=304829

Content from docs.info.apple.com is not included.http://docs.info.apple.com/article.html?artnum=307177

Content from h20000.www2.hp.com is not included.http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=c01070495

Content from h20000.www2.hp.com is not included.http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01118771

Content from itrc.hp.com is not included.http://itrc.hp.com/service/cki/docDisplay.do?docId=c00849540

Content from jvn.jp is not included.http://jvn.jp/en/jp/JVN51615542/index.html

Content from jvndb.jvn.jp is not included.http://jvndb.jvn.jp/ja/contents/2012/JVNDB-2012-000079.html

Content from lists.apple.com is not included.http://lists.apple.com/archives/Security-announce/2007/Dec/msg00001.html

Content from lists.apple.com is not included.http://lists.apple.com/archives/security-announce/2006/Nov/msg00001.html

Content from lists.vmware.com is not included.http://lists.vmware.com/pipermail/security-announce/2008/000008.html

Content from marc.info is not included.http://marc.info/?l=bind-announce&m=116253119512445&w=2

Content from marc.info is not included.http://marc.info/?l=bugtraq&m=130497311408250&w=2

Content from openvpn.net is not included.http://openvpn.net/changelog.html

Content from secunia.com is not included.http://secunia.com/advisories/21709

Content from secunia.com is not included.http://secunia.com/advisories/21767

Content from secunia.com is not included.http://secunia.com/advisories/21776

Content from secunia.com is not included.http://secunia.com/advisories/21778

Content from secunia.com is not included.http://secunia.com/advisories/21785

Content from secunia.com is not included.http://secunia.com/advisories/21791

Content from secunia.com is not included.http://secunia.com/advisories/21812

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Content from secunia.com is not included.http://secunia.com/advisories/21846

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Content from secunia.com is not included.http://secunia.com/advisories/21870

Content from secunia.com is not included.http://secunia.com/advisories/21873

Content from secunia.com is not included.http://secunia.com/advisories/21906

Content from secunia.com is not included.http://secunia.com/advisories/21927

Content from secunia.com is not included.http://secunia.com/advisories/21930

Content from secunia.com is not included.http://secunia.com/advisories/21982

Content from secunia.com is not included.http://secunia.com/advisories/22036

Content from secunia.com is not included.http://secunia.com/advisories/22044

Content from secunia.com is not included.http://secunia.com/advisories/22066

Content from secunia.com is not included.http://secunia.com/advisories/22161

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Content from secunia.com is not included.http://secunia.com/advisories/22260

Content from secunia.com is not included.http://secunia.com/advisories/22284

Content from secunia.com is not included.http://secunia.com/advisories/22325

Content from secunia.com is not included.http://secunia.com/advisories/22446

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Content from secunia.com is not included.http://secunia.com/advisories/22671

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Content from secunia.com is not included.http://secunia.com/advisories/22758

Content from secunia.com is not included.http://secunia.com/advisories/22799

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Content from secunia.com is not included.http://secunia.com/advisories/22938

Content from secunia.com is not included.http://secunia.com/advisories/22939

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Content from secunia.com is not included.http://secunia.com/advisories/22948

Content from secunia.com is not included.http://secunia.com/advisories/22949

Content from secunia.com is not included.http://secunia.com/advisories/23155

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Content from secunia.com is not included.http://secunia.com/advisories/23680

Content from secunia.com is not included.http://secunia.com/advisories/23794

Content from secunia.com is not included.http://secunia.com/advisories/23841

Content from secunia.com is not included.http://secunia.com/advisories/23915

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Content from secunia.com is not included.http://secunia.com/advisories/25284

Content from secunia.com is not included.http://secunia.com/advisories/25399

Content from secunia.com is not included.http://secunia.com/advisories/25649

Content from secunia.com is not included.http://secunia.com/advisories/26329

Content from secunia.com is not included.http://secunia.com/advisories/26893

Content from secunia.com is not included.http://secunia.com/advisories/28115

Content from secunia.com is not included.http://secunia.com/advisories/31492

Content from secunia.com is not included.http://secunia.com/advisories/38567

Content from secunia.com is not included.http://secunia.com/advisories/38568

Content from secunia.com is not included.http://secunia.com/advisories/41818

Content from secunia.com is not included.http://secunia.com/advisories/60799

Content from security.freebsd.org is not included.http://security.freebsd.org/advisories/FreeBSD-SA-06:19.openssl.asc

Content from security.gentoo.org is not included.http://security.gentoo.org/glsa/glsa-200609-05.xml

Content from security.gentoo.org is not included.http://security.gentoo.org/glsa/glsa-200609-18.xml

Content from securitytracker.com is not included.http://securitytracker.com/id?1016791

Content from securitytracker.com is not included.http://securitytracker.com/id?1017522

Content from slackware.com is not included.http://slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.566955

Content from slackware.com is not included.http://slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.605306

Content from sunsolve.sun.com is not included.http://sunsolve.sun.com/search/document.do?assetkey=1-26-102648-1

Content from sunsolve.sun.com is not included.http://sunsolve.sun.com/search/document.do?assetkey=1-26-102656-1

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Content from sunsolve.sun.com is not included.http://sunsolve.sun.com/search/document.do?assetkey=1-26-102722-1

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Content from sunsolve.sun.com is not included.http://sunsolve.sun.com/search/document.do?assetkey=1-26-102759-1

Content from sunsolve.sun.com is not included.http://sunsolve.sun.com/search/document.do?assetkey=1-66-200708-1

Content from sunsolve.sun.com is not included.http://sunsolve.sun.com/search/document.do?assetkey=1-66-201247-1

Content from sunsolve.sun.com is not included.http://sunsolve.sun.com/search/document.do?assetkey=1-66-201534-1

Content from sunsolve.sun.com is not included.http://sunsolve.sun.com/search/document.do?assetkey=1-77-1000148.1-1

Content from support.attachmate.com is not included.http://support.attachmate.com/techdocs/2127.html

Content from support.attachmate.com is not included.http://support.attachmate.com/techdocs/2128.html

Content from support.attachmate.com is not included.http://support.attachmate.com/techdocs/2137.html

Content from support.avaya.com is not included.http://support.avaya.com/elmodocs2/security/ASA-2006-188.htm

Content from www.arkoon.fr is not included.http://www.arkoon.fr/upload/alertes/40AK-2006-04-FR-1.1_SSL360_OPENSSL_RSA.pdf

Content from www.bluecoat.com is not included.http://www.bluecoat.com/support/knowledge/openSSL_RSA_Signature_forgery.html

Content from www.cisco.com is not included.http://www.cisco.com/en/US/products/hw/contnetw/ps4162/tsd_products_security_response09186a008077af1b.html

Content from www.cisco.com is not included.http://www.cisco.com/warp/public/707/cisco-sr-20061108-openssl.shtml

Content from www.debian.org is not included.http://www.debian.org/security/2006/dsa-1174

Content from www.gentoo.org is not included.http://www.gentoo.org/security/en/glsa/glsa-200610-06.xml

Content from www.gentoo.org is not included.http://www.gentoo.org/security/en/glsa/glsa-201408-19.xml

Content from www.imc.org is not included.http://www.imc.org/ietf-openpgp/mail-archive/msg14307.html

Content from www.kb.cert.org is not included.http://www.kb.cert.org/vuls/id/845620

Content from www.mandriva.com is not included.http://www.mandriva.com/security/advisories?name=MDKSA-2006:161

Content from www.mandriva.com is not included.http://www.mandriva.com/security/advisories?name=MDKSA-2006:177

Content from www.mandriva.com is not included.http://www.mandriva.com/security/advisories?name=MDKSA-2006:178

Content from www.mandriva.com is not included.http://www.mandriva.com/security/advisories?name=MDKSA-2006:207

Content from www.matasano.com is not included.http://www.matasano.com/log/469/many-rsa-signatures-may-be-forgeable-in-openssl-and-elsewhere/

Content from www.novell.com is not included.http://www.novell.com/linux/security/advisories/2006_26_sr.html

Content from www.novell.com is not included.http://www.novell.com/linux/security/advisories/2006_55_ssl.html

Content from www.novell.com is not included.http://www.novell.com/linux/security/advisories/2006_61_opera.html

Content from www.novell.com is not included.http://www.novell.com/linux/security/advisories/2007_10_ibmjava.html

Content from www.openbsd.org is not included.http://www.openbsd.org/errata.html

This content is not included.http://www.openoffice.org/security/cves/CVE-2006-4339.html

Content from www.openpkg.com is not included.http://www.openpkg.com/security/advisories/OpenPKG-SA-2006.018.html

Content from www.openpkg.org is not included.http://www.openpkg.org/security/advisories/OpenPKG-SA-2006.029-bind.html

Content from www.openssl.org is not included.http://www.openssl.org/news/secadv_20060905.txt

Content from www.opera.com is not included.http://www.opera.com/support/search/supsearch.dml?index=845

Content from www.oracle.com is not included.http://www.oracle.com/technetwork/topics/security/cpujan2007-101493.html

Content from www.osvdb.org is not included.http://www.osvdb.org/28549

This content is not included.http://www.redhat.com/support/errata/RHSA-2006-0661.html

This content is not included.http://www.redhat.com/support/errata/RHSA-2007-0062.html

This content is not included.http://www.redhat.com/support/errata/RHSA-2007-0072.html

This content is not included.http://www.redhat.com/support/errata/RHSA-2007-0073.html

This content is not included.http://www.redhat.com/support/errata/RHSA-2008-0629.html

Content from www.securityfocus.com is not included.http://www.securityfocus.com/archive/1/445231/100/0/threaded

Content from www.securityfocus.com is not included.http://www.securityfocus.com/archive/1/445822/100/0/threaded

Content from www.securityfocus.com is not included.http://www.securityfocus.com/archive/1/450327/100/0/threaded

Content from www.securityfocus.com is not included.http://www.securityfocus.com/archive/1/456546/100/200/threaded

Content from www.securityfocus.com is not included.http://www.securityfocus.com/archive/1/489739/100/0/threaded

Content from www.securityfocus.com is not included.http://www.securityfocus.com/bid/19849

Content from www.securityfocus.com is not included.http://www.securityfocus.com/bid/22083

Content from www.securityfocus.com is not included.http://www.securityfocus.com/bid/28276

Content from www.serv-u.com is not included.http://www.serv-u.com/releasenotes/

Content from www.sybase.com is not included.http://www.sybase.com/detail?id=1047991

Content from www.ubuntu.com is not included.http://www.ubuntu.com/usn/usn-339-1

Content from www.us-cert.gov is not included.http://www.us-cert.gov/cas/techalerts/TA06-333A.html

Content from www.us.debian.org is not included.http://www.us.debian.org/security/2006/dsa-1173

Content from www.vmware.com is not included.http://www.vmware.com/security/advisories/VMSA-2008-0005.html

Content from www.vmware.com is not included.http://www.vmware.com/support/ace2/doc/releasenotes_ace2.html

Content from www.vmware.com is not included.http://www.vmware.com/support/esx2/doc/esx-202-200612-patch.html

Content from www.vmware.com is not included.http://www.vmware.com/support/esx21/doc/esx-213-200612-patch.html

Content from www.vmware.com is not included.http://www.vmware.com/support/esx25/doc/esx-253-200612-patch.html

Content from www.vmware.com is not included.http://www.vmware.com/support/esx25/doc/esx-254-200612-patch.html

Content from www.vmware.com is not included.http://www.vmware.com/support/player/doc/releasenotes_player.html

Content from www.vmware.com is not included.http://www.vmware.com/support/player2/doc/releasenotes_player2.html

Content from www.vmware.com is not included.http://www.vmware.com/support/server/doc/releasenotes_server.html

Content from www.vmware.com is not included.http://www.vmware.com/support/vi3/doc/esx-3069097-patch.html

Content from www.vmware.com is not included.http://www.vmware.com/support/vi3/doc/esx-9986131-patch.html

Content from www.vmware.com is not included.http://www.vmware.com/support/ws55/doc/releasenotes_ws55.html

Content from www.vmware.com is not included.http://www.vmware.com/support/ws6/doc/releasenotes_ws6.html

Content from www.vupen.com is not included.http://www.vupen.com/english/advisories/2006/3453

Content from www.vupen.com is not included.http://www.vupen.com/english/advisories/2006/3566

Content from www.vupen.com is not included.http://www.vupen.com/english/advisories/2006/3730

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Content from www.vupen.com is not included.http://www.vupen.com/english/advisories/2006/4327

Content from www.vupen.com is not included.http://www.vupen.com/english/advisories/2006/4329

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Content from www.vupen.com is not included.http://www.vupen.com/english/advisories/2007/0254

Content from www.vupen.com is not included.http://www.vupen.com/english/advisories/2007/0343

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Content from www.vupen.com is not included.http://www.vupen.com/english/advisories/2007/1815

Content from www.vupen.com is not included.http://www.vupen.com/english/advisories/2007/1945

Content from www.vupen.com is not included.http://www.vupen.com/english/advisories/2007/2163

Content from www.vupen.com is not included.http://www.vupen.com/english/advisories/2007/2315

Content from www.vupen.com is not included.http://www.vupen.com/english/advisories/2007/2783

Content from www.vupen.com is not included.http://www.vupen.com/english/advisories/2007/4224

Content from www.vupen.com is not included.http://www.vupen.com/english/advisories/2008/0905/references

Content from www.vupen.com is not included.http://www.vupen.com/english/advisories/2010/0366

Content from www1.itrc.hp.com is not included.http://www1.itrc.hp.com/service/cki/docDisplay.do?docId=c00771742

Content from www14.software.ibm.com is not included.http://www14.software.ibm.com/webapp/set2/subscriptions/pqvcmjd?mode=18&ID=3117

Content from exchange.xforce.ibmcloud.com is not included.https://exchange.xforce.ibmcloud.com/vulnerabilities/28755

Content from issues.rpath.com is not included.https://issues.rpath.com/browse/RPL-1633

Content from issues.rpath.com is not included.https://issues.rpath.com/browse/RPL-616

Content from oval.cisecurity.org is not included.https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11656

Content from secure-support.novell.com is not included.https://secure-support.novell.com/KanisaPlatform/Publishing/41/3143224_f.SAL_Public.html

Content from www2.itrc.hp.com is not included.https://www2.itrc.hp.com/service/cki/docDisplay.do?docId=c00967144

Affected Packages and Issued Red Hat Security Errata

Products / Services Components State Errata
Red Hat Enterprise Linux 10 edk2 Not affected
Red Hat Enterprise Linux 10 openssl Not affected
Red Hat Enterprise Linux 10 shim Not affected
Red Hat Enterprise Linux 10 shim-unsigned-aarch64 Not affected
Red Hat Enterprise Linux 10 shim-unsigned-x64 Not affected
Red Hat Enterprise Linux 6 openssl Not affected
Red Hat Enterprise Linux 7 openssl Not affected
Red Hat Enterprise Linux 7 ovmf Not affected
Red Hat Enterprise Linux 8 compat-openssl10 Not affected
Red Hat Enterprise Linux 8 edk2 Not affected
Unless explicitly stated as not affected, all previous versions of packages in any minor update stream of a product listed here should be assumed vulnerable, although may not have been subject to full analysis.

Common Vulnerability Scoring System (CVSS) Score Details

Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authorities (CNA) source for its products and services (see Red Hat classifications ).

The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 Score Breakdown Red Hat NVD
CVSS v3 Base Score 9.1
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact None

CVSS v3 Vector

Red Hat CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Frequently Asked Questions

Why is Red Hat's CVSS v3 score or Impact different from other vendors?

 For open source software shipped by multiple vendors, the CVSS base scores may vary for each vendor's version depending on the version they ship, how they ship it, the platform, and even how the software is compiled. This makes scoring of vulnerabilities difficult for third-party vulnerability databases such as NVD that only provide a single CVSS base score for each vulnerability. Red Hat scores reflect how a vulnerability affects our products specifically.

For more information, see https://access.redhat.com/solutions/762393.

My product is listed as "Under investigation" or "Affected", when will Red Hat release a fix for this vulnerability?
  • "Under investigation" doesn't necessarily mean that the product is affected by this vulnerability. It only means that our Analysis Team is still working on determining whether the product is affected and how it is affected.
  • "Affected" means that our Analysis Team has determined that this product is affected by this vulnerability and might release a fix to address this in the near future.

What can I do if my product is listed as "Will not fix"?

 A "will not fix" status means that a fix for an affected product version is not planned or not possible due to complexity, which may create additional risk.

Available options depend mostly on the Impact of the vulnerability and the current Life Cycle phase of your product. Overall, you have the following options:
  • Upgrade to a supported product version that includes a fix for this vulnerability (recommended).
  • Apply a mitigation (if one exists).
  • Open a This content is not included.support case to request a prioritization of releasing a fix for this vulnerability.

What can I do if my product is listed as "Fix deferred"?

 A deferred status means that a fix for an affected product version is not guaranteed due to higher-priority development work.

Available options depend mostly on the Impact of the vulnerability and the current Life Cycle phase of your product. Overall, you have the following options:
  • Apply a mitigation (if one exists).
  • Open a This content is not included.support case to request a prioritization of releasing a fix for this vulnerability.
  • Red Hat Engineering focuses on addressing high-priority issues based on their complexity or limited lifecycle support. Therefore, lower-priority issues will not receive immediate fixes.

What is a mitigation?

 A mitigation is an action that can be taken to reduce the impact of a security vulnerability, without deploying any fixes.

I have a Red Hat product but it is not in the above list, is it affected?

 The listed products were found to include one or more of the components that this vulnerability affects. These products underwent a thorough evaluation to determine their affectedness by this vulnerability. Note that layered products (such as container-based offerings) that consume affected components from any of the products listed in this table may be affected and are not represented.

Why is my security scanner reporting my product as vulnerable to this vulnerability even though my product version is fixed or not affected?

 In order to maintain code stability and compatibility, Red Hat usually does not rebase packages to entirely new versions. Instead, we backport fixes and new features to an older version of the package we distribute. This can result in some security scanners that only consider the package version to report the package as vulnerable. To avoid this, we suggest that you use an approved vulnerability scanner from our This content is not included.Red Hat Vulnerability Scanner Certification program.