CVEvulnerability

CVE-2015-3193

7.5 HIGH Published 2015-12-06 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2015-12-06
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N
Weaknesses
CWE-200

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.

Affected configurations

• openssl openssl 1.0.2 • openssl openssl 1.0.2a • openssl openssl 1.0.2b • openssl openssl 1.0.2c • openssl openssl 1.0.2d • nodejs node.js (>= 4.0.0 <= 4.1.2) • nodejs node.js (>= 4.2.0 < 4.2.3) • nodejs node.js (>= 5.0.0 < 5.1.1) • canonical ubuntu linux 12.04 • canonical ubuntu linux 14.04 • canonical ubuntu linux 15.04 • canonical ubuntu linux 15.10

Related

Weakness · CWE (1)

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness

References