Vulnerability Details : CVE-2011-4574
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.
Products affected by CVE-2011-4574
- cpe:2.3:a:polarssl:polarssl:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2011-4574
0.43%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 62 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2011-4574
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2011-4574
-
The product uses a Pseudo-Random Number Generator (PRNG) in a security context, but the PRNG's algorithm is not cryptographically strong.Assigned by: secalert@redhat.com (Primary)
References for CVE-2011-4574
-
https://tls.mbed.org/tech-updates/security-advisories/polarssl-security-advisory-2011-02
PolarSSL Security Advisory 2011-02 - Tech Updates - Mbed TLS (Previously PolarSSL)Third Party Advisory
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