CVE-2015-3193

Advisory lineage Upstream: 0 Downstream: 5
Modified
Published: 06 Dec 2015, 00:00
Last modified:06 Aug 2024, 05:39

Vulnerability Summary

Overall Risk (default)
medium
36/100
CVSS Score
7.5 HIGH
v3.1 (nvd)
EPSS Score
27.51% HIGH
28% probability -3.89%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

06 Dec 2015, 00:00
Published
Vulnerability first disclosed
06 Aug 2024, 05:39
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:P/I:N/A:N

EPSS Trends

Current EPSS score: 27.51%• Percentile: 97%

Techniques & Countermeasures

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

    The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Affected Systems

  • canonical•ubuntu_linux

    12.04 | 14.04 | 15.04 | 15.10

  • nodejs•node.js

    ≥ 4.0.0, ≤ 4.1.2 | ≥ 4.2.0, < 4.2.3 | ≥ 5.0.0, < 5.1.1

  • Unknown•OpenSSL

    1.0.2 | 1.0.2a | 1.0.2b | 1.0.2c | 1.0.2d

References (22)