Out-of-Bounds Affecting folly package, versions [2019.10.21.00,2020.08.10.00)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
1.78% (78th percentile)

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  • Snyk IDSNYK-CONAN-FOLLY-10075874
  • published8 May 2025
  • disclosed31 Dec 2018
  • creditUnknown

Introduced: 31 Dec 2018

CVE-2018-6337  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade folly to version 2020.08.10.00 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-Bounds folly::secureRandom will re-use a buffer between parent and child processes when fork() is called. That will result in multiple forked children producing repeat (or similar) results. This affects HHVM 3.26 prior to 3.26.3 and the folly library between v2017.12.11.00 and v2018.08.09.00.

CVSS Base Scores

version 3.1