CVE-2015-3193

OpenSSL: BN_mod_exp may produce incorrect results on x86_64

Published Dec 6, 2015 CVSS 3.1 · 7.5 High EPSS 25.1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Ubuntu USN Ubuntu USN USN-2830-1 OpenSSL vulnerabilities
References
Link Providers
http://fortiguard.com/advisory/openssl-advisory-december-2015 cve-icon cve-icon
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759 cve-icon cve-icon
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761 cve-icon cve-icon
http://openssl.org/news/secadv/20151203.txt cve-icon cve-icon
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151204-openssl cve-icon cve-icon
http://www.fortiguard.com/advisory/openssl-advisory-december-2015 cve-icon cve-icon
http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html cve-icon cve-icon
http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html cve-icon cve-icon
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html cve-icon cve-icon
http://www.securityfocus.com/bid/78705 cve-icon cve-icon
http://www.securityfocus.com/bid/91787 cve-icon cve-icon
http://www.securitytracker.com/id/1034294 cve-icon cve-icon
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2015&m=slackware-security.539966 cve-icon cve-icon
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2015&m=slackware-security.754583 cve-icon cve-icon
http://www.ubuntu.com/usn/USN-2830-1 cve-icon cve-icon
https://blog.fuzzing-project.org/31-Fuzzing-Math-miscalculations-in-OpenSSLs-BN_mod_exp-CVE-2015-3193.html cve-icon cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=1288317 cve-icon cve-icon
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf cve-icon cve-icon
https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=d73cc256c8e256c32ed959456101b73ba9842f72 cve-icon cve-icon
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05398322 cve-icon cve-icon
https://kb.isc.org/article/AA-01438 cve-icon cve-icon
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40100 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2015-3193 cve-icon
https://openssl.org/news/secadv/20151203.txt cve-icon
https://www.cve.org/CVERecord?id=CVE-2015-3193 cve-icon
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Aug 6, 2024, 5:39 AM
Reserved
Apr 10, 2015, 12:00 AM
Status
Modified
Published
Dec 6, 2015, 8:59 PM
Modified
Jun 17, 2026, 12:25 AM
Severity
Moderate
Public date
Dec 3, 2015, 12:00 AM