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Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) Affecting libmudflap package, versions <0:4.8.5-28.0.1.el7

Severity

 Recommended
low

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.17% (55th percentile)

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  • Snyk IDSNYK-ORACLE7-LIBMUDFLAP-2522576
  • published10 Apr 2022
  • disclosed26 Jul 2017
Report a new vulnerability Found a mistake?

Introduced: 26 Jul 2017

CVE-2017-11671  (opens in a new tab)
CWE-338  (opens in a new tab)

How to fix?

Upgrade Oracle:7 libmudflap to version 0:4.8.5-28.0.1.el7 or higher.
This issue was patched in ELSA-2018-0849.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libmudflap package and not the libmudflap package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

Under certain circumstances, the ix86_expand_builtin function in i386.c in GNU Compiler Collection (GCC) version 4.6, 4.7, 4.8, 4.9, 5 before 5.5, and 6 before 6.4 will generate instruction sequences that clobber the status flag of the RDRAND and RDSEED intrinsics before it can be read, potentially causing failures of these instructions to go unreported. This could potentially lead to less randomness in random number generation.