Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) Affecting kernel-xen-devel package, versions <0:2.6.18-128.1.14.0.1.el5


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.13% (48th percentile)

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  • Snyk IDSNYK-ORACLE5-KERNELXENDEVEL-2452237
  • published10 Apr 2022
  • disclosed18 Sept 2009

Introduced: 18 Sep 2009

CVE-2009-3238  (opens in a new tab)
CWE-338  (opens in a new tab)

How to fix?

Upgrade Oracle:5 kernel-xen-devel to version 0:2.6.18-128.1.14.0.1.el5 or higher.
This issue was patched in ELSA-2009-1106.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-xen-devel package and not the kernel-xen-devel package as distributed by Oracle. See How to fix? for Oracle:5 relevant fixed versions and status.

The get_random_int function in drivers/char/random.c in the Linux kernel before 2.6.30 produces insufficiently random numbers, which allows attackers to predict the return value, and possibly defeat protection mechanisms based on randomization, via vectors that leverage the function's tendency to "return the same value over and over again for long stretches of time."

CVSS Scores

version 3.1