CVE-2015-3193

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…

published December 6, 2015

CVSS

—

EPSS

25%

Percentile

97.9

In the wild

Unconfirmed

What it is

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.

The record

Technical detail

CVSS: Not scored
CVSS v4.0: Not supplied
EPSS: 0.25137 · 97.9th percentile
Published: 2015-12-06T00:00Z

EPSS history

Timeline

06 DEC 00:00Z
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…
cvelistv5