← Back

CVE-2018-6594

nvd nist
Published: Feb 3, 2018Modified: Jun 17, 2026

JSON object

Loading...
7.5
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

lib/Crypto/PublicKey/ElGamal.py in PyCrypto through 2.6.1 generates weak ElGamal key parameters, which allows attackers to obtain sensitive information by reading ciphertext data (i.e., it does not have semantic security in face of a ciphertext-only attack). The Decisional Diffie-Hellman (DDH) assumption does not hold for PyCrypto's ElGamal implementation.

Affected (6)

Dlitz
1 product
Pycrypto
Debian
1 product
Debian Linux
Canonical
1 product
Ubuntu Linux
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Pycrypto
Up to 2.6.1
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Debian Linux
Version 7.0
Configuration C
4 vulnerable
Vulnerable SoftwareAffected Versions
Canonical
Ubuntu Linux
Version 12.04
Ubuntu Linux
Version 14.04
Ubuntu Linux
Version 16.04
Ubuntu Linux
Version 17.10

Related CWEs

CWE-326
Inadequate Encryption Strength
The product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required.

References (12)

Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
ExploitIssue TrackingThird Party Advisory
Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: cve@mitre.org
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitIssue TrackingThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.