CVE-2018-6334 (GCVE-0-2018-6334)

Vulnerability from cvelistv5 – Published: 2018-12-31 20:00 – Updated: 2025-05-06 16:48
VLAI?
Summary
Multipart-file uploads call variables to be improperly registered in the global scope. In cases where variables are not declared explicitly before being used this can lead to unexpected behavior. This affects all supported versions of HHVM prior to the patch (3.25.1, 3.24.5, and 3.21.9 and below).
Severity ?
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-621 - Variable Extraction Error (CWE-621)
Assigner
References
Impacted products
Vendor Product Version
Facebook HHVM Affected: 3.25.2
Affected: 3.25.0
Affected: 3.24.6
Affected: 3.22.0
Affected: 3.21.10
Affected: unspecified , < 3.21.10 (custom)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.