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CVE-2015-3193

Good to know:

Date: December 5, 2015

The Montgomery squaring implementation in crypto/bn/asm/x86_64-mont5.pl in OpenSSL 1.0.2 before 1.0.2e on the x86_64 platform, as used by the BN_mod_exp function, mishandles carry propagation and produces incorrect output, which makes it easier for remote attackers to obtain sensitive private-key information via an attack against use of a (1) Diffie-Hellman (DH) or (2) Diffie-Hellman Ephemeral (DHE) ciphersuite.

Language: Perl

Severity Score

7.5

Related Resources (26)

Url: https://bugzilla.redhat.com/show_bug.cgi?id=1288317

Url: http://www.ubuntu.com/usn/USN-2830-1

Url: http://www.slackware.com/security/viewer.php?l=slackware-security&y=2015&m=slackware-security.754583

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

Url: http://openssl.org/news/secadv/20151203.txt

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

Url: https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40100

Url: https://blog.fuzzing-project.org/31-Fuzzing-Math-miscalculations-in-OpenSSLs-BN_mod_exp-CVE-2015-3193.html

Url: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151204-openssl

Url: http://fortiguard.com/advisory/openssl-advisory-december-2015

Url: https://kb.isc.org/article/AA-01438

Url: http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759

Url: http://www.securitytracker.com/id/1034294

Url: https://nvd.nist.gov/vuln/detail/CVE-2015-3193

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

Url: http://www.securityfocus.com/bid/78705

Url: http://www.slackware.com/security/viewer.php?l=slackware-security&y=2015&m=slackware-security.539966

Url: http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761

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

Url: https://security-tracker.debian.org/tracker/CVE-2015-3193

Url: http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html

Url: https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=d73cc256c8e256c32ed959456101b73ba9842f72

Url: https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05398322

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

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2015-3193

Url: https://www.mend.io/vulnerability-database/CVE-2015-3193

Severity Score

7.5

Weakness Type (CWE)

Information Leak / Disclosure

CWE-200

Top Fix

Upgrade Version

Upgrade to version 1.0.2e

Learn More

CVSS v3.1

Base Score:	7.5
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	NONE
Availability (A):	NONE

CVSS v2

Base Score:	5.0
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	NONE
Availability (A):	NONE
Additional information:

Mend.io Vulnerability Database

We found results for “”

CVE-2015-3193

Good to know:

Date: December 5, 2015

Language: Perl

Severity Score

Related Resources (26)

Severity Score

Weakness Type (CWE)

Top Fix

Upgrade Version

CVSS v3.1

CVSS v2

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