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CVE-2015-3193

Published: Dec 6, 2015

Modified: Aug 6, 2024

PUBLISHED

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.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

20151204 Multiple Vulnerabilities in OpenSSL (December 2015) Affecting Cisco Products

vendor-advisory

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

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

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

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

SSA:2015-349-04

vendor-advisory

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

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

SSA:2015-349-01

vendor-advisory

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

vendor-advisory

vdb-entry

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

vdb-entry

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

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

vdb-entry

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

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

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

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

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

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