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CVE-2015-3193

Status Candidate

Overview

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.

Related Files

HPE Security Bulletin HPESBHF03709 1
Posted Feb 23, 2017
Authored by Hewlett Packard Enterprise | Site hpe.com

HPE Security Bulletin HPESBHF03709 1 - Potential security vulnerabilities with OpenSSL have been addressed for HPE Network products including Comware 5, Comware 7, IMC, and VCX. The vulnerabilities could be remotely exploited resulting in Denial of Service (DoS) or disclosure of sensitive information. Revision 1 of this advisory.

tags | advisory, denial of service, vulnerability
advisories | CVE-2015-1794, CVE-2015-3193, CVE-2015-3194, CVE-2015-3195, CVE-2015-3196
MD5 | 1d958ff82c10799f1e70d8dcc9585a6e
Apple Security Advisory 2016-10-27-1
Posted Oct 28, 2016
Authored by Apple | Site apple.com

Apple Security Advisory 2016-10-27-1 - Xcode 8.1 is now available and addresses code execution vulnerabilities.

tags | advisory, vulnerability, code execution
systems | apple
advisories | CVE-2015-3193, CVE-2015-3194, CVE-2015-6764, CVE-2015-8027, CVE-2016-0702, CVE-2016-0705, CVE-2016-0797, CVE-2016-1669, CVE-2016-2086, CVE-2016-2216
MD5 | 1b007eeb0a2d6139a1982d2a4e1a4a0e
Slackware Security Advisory - bind Updates
Posted Dec 16, 2015
Authored by Slackware Security Team | Site slackware.com

Slackware Security Advisory - New bind packages are available for Slackware 13.0, 13.1, 13.37, 14.0, 14.1, and -current to fix security issues.

tags | advisory
systems | linux, slackware
advisories | CVE-2015-3193, CVE-2015-8000, CVE-2015-8461
MD5 | 6b60208390aa1fb7a64e9c174aee9c0a
Slackware Security Advisory - openssl Updates
Posted Dec 16, 2015
Authored by Slackware Security Team | Site slackware.com

Slackware Security Advisory - New openssl packages are available for Slackware 13.0, 13.1, 13.37, 14.0, 14.1, and -current to fix security issues.

tags | advisory
systems | linux, slackware
advisories | CVE-2015-1794, CVE-2015-3193, CVE-2015-3194, CVE-2015-3195, CVE-2015-3196
MD5 | fe3ff7e87ac5a6f60bc09c38ee1718d7
Ubuntu Security Notice USN-2830-1
Posted Dec 7, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2830-1 - Guy Leaver discovered that OpenSSL incorrectly handled a ServerKeyExchange for an anonymous DH ciphersuite with the value of p set to 0. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service. This issue only applied to Ubuntu 15.10. Hanno B=C3=B6ck discovered that the OpenSSL Montgomery squaring procedure algorithm may produce incorrect results when being used on x86_64. A remote attacker could possibly use this issue to break encryption. This issue only applied to Ubuntu 15.10. Various other issues were also addressed.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2015-1794, CVE-2015-3193, CVE-2015-3194, CVE-2015-3195, CVE-2015-3196
MD5 | 85b8339f9f77f74db27478628ff3b691
OpenSSL Toolkit 1.0.2e
Posted Dec 3, 2015
Site openssl.org

OpenSSL is a robust, fully featured Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols with full-strength cryptography world-wide.

Changes: Fix applied to BN_mod_exp which may produce incorrect results on x86_64. Also addressed was a certificate verify crash with missing PSS parameter, an X509_ATTRIBUTE memory leak, and various other issues.
tags | tool, encryption, protocol
systems | unix
advisories | CVE-2015-3193, CVE-2015-3194, CVE-2015-3195
MD5 | 2218c1a6f807f7206c11eb3ee3a5ec80
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