CVE Vulnerabilities

CVE-2016-4980

Use of Insufficiently Random Values

Published: Nov 27, 2019 | Modified: Feb 12, 2023
CVSS 3.x
2.5
LOW
Source:
NVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
CVSS 2.x
1.9 LOW
AV:L/AC:M/Au:N/C:N/I:P/A:N
RedHat/V2
1 LOW
AV:L/AC:H/Au:S/C:N/I:P/A:N
RedHat/V3
2.8 LOW
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N
Ubuntu

A password generation weakness exists in xquest through 2016-06-13.

Weakness

The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.

Affected Software

Name Vendor Start Version End Version
Xquest Ethz * 2016-06-13 (including)

Potential Mitigations

  • Use a well-vetted algorithm that is currently considered to be strong by experts in the field, and select well-tested implementations with adequate length seeds.
  • In general, if a pseudo-random number generator is not advertised as being cryptographically secure, then it is probably a statistical PRNG and should not be used in security-sensitive contexts.
  • Pseudo-random number generators can produce predictable numbers if the generator is known and the seed can be guessed. A 256-bit seed is a good starting point for producing a “random enough” number.

References