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CVE-2015-1788

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Date: June 11, 2015

The BN_GF2m_mod_inv function in crypto/bn/bn_gf2m.c in OpenSSL before 0.9.8s, 1.0.0 before 1.0.0e, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b does not properly handle ECParameters structures in which the curve is over a malformed binary polynomial field, which allows remote attackers to cause a denial of service (infinite loop) via a session that uses an Elliptic Curve algorithm, as demonstrated by an attack against a server that supports client authentication.

Language: C

Severity Score

3.7

Related Resources (50)

Url: https://security-tracker.debian.org/tracker/CVE-2015-1788

Url: http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html

Url: https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05045763

Url: http://marc.info/?l=bugtraq&m=143880121627664&w=2

Url: http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00004.html

Url: https://openssl.org/news/secadv/20150611.txt

Url: https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05131044

Url: https://github.com/openssl/openssl/commit/4924b37ee01f71ae19c94a8934b80eeb2f677932

Url: https://security.gentoo.org/glsa/201506-02

Url: https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05150888

Url: http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html

Url: http://www.debian.org/security/2015/dsa-3287

Url: https://nvd.nist.gov/vuln/detail/CVE-2015-1788

Url: http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html

Url: http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html

Url: http://www.fortiguard.com/advisory/2015-06-11-fortinet-vulnerability-openssl-vulnerabilities-june-2015

Url: http://www.ubuntu.com/usn/USN-2639-1

Url: http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00037.html

Url: https://bto.bluecoat.com/security-advisory/sa98

Url: http://www.securityfocus.com/bid/91787

Url: http://www.securityfocus.com/bid/75158

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2015-1788

Url: http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00026.html

Url: http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00023.html

Url: http://www.securitytracker.com/id/1032564

Url: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150612-openssl

Url: https://support.citrix.com/article/CTX216642

Url: http://www-304.ibm.com/support/docview.wss?uid=swg21960041

Url: http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10694

Url: http://fortiguard.com/advisory/openssl-vulnerabilities-june-2015

Url: http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html

Url: http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00007.html

Url: https://support.apple.com/kb/HT205031

Url: http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html

Url: https://www.openssl.org/news/secadv_20150611.txt

Url: http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html

Url: http://www.fortiguard.com/advisory/openssl-vulnerabilities-june-2015

Url: https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05184351

Url: http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00006.html

Url: https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05158380

Url: http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html

Url: https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

Url: http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00003.html

Url: https://kc.mcafee.com/corporate/index?page=content&id=SB10122

Url: http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00024.html

Url: http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html

Url: http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2015-008.txt.asc

Url: http://marc.info/?l=bugtraq&m=144050155601375&w=2

Url: http://fortiguard.com/advisory/2015-07-09-cve-2015-1793-openssl-alternative-chains-certificate-forgery

Url: https://www.mend.io/vulnerability-database/CVE-2015-1788

Severity Score

3.7

Weakness Type (CWE)

Resource Management Errors

CWE-399

CVSS v3.1

Base Score:	3.7
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	HIGH
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	LOW

CVSS v2

Base Score:	4.3
Access Vector (AV):	NETWORK
Access Complexity (AC):	MEDIUM
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	PARTIAL
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