CVE-2011-4574 Information

Description

PolarSSL versions prior to v1.1 use the HAVEGE random number generation algorithm. At its heart this uses timing information based on the processor’s high resolution timer (the RDTSC instruction). This instruction can be virtualized and some virtual machine hosts have chosen to disable this instruction returning 0s or predictable results.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://tls.mbed.org/tech-updates/security-advisories/polarssl-security-advisory-2011-02

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8