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CVE PROGRAM SOURCE RECORDUnscored

CVE-2020-1898

The fb_unserialize function did not impose a depth limit for nested deserialization. That meant a maliciously constructed string could cause deserialization to recurse, leading to

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Status
Published
Published
Updated
Assigning organization
facebook

Description

The fb_unserialize function did not impose a depth limit for nested deserialization. That meant a maliciously constructed string could cause deserialization to recurse, leading to stack exhaustion. This issue affected HHVM prior to v4.32.3, between versions 4.33.0 and 4.56.0, 4.57.0, 4.58.0, 4.58.1, 4.59.0, 4.60.0, 4.61.0, 4.62.0.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Facebook HHVM

  • 4.62.1 to < unspecifiedunaffected
  • 4.62.0affected
  • 4.61.1 to < unspecifiedunaffected
  • 4.61.0affected
  • 4.60.1 to < unspecifiedunaffected
  • 4.60.0affected
  • 4.59.1 to < unspecifiedunaffected
  • 4.59.0affected
  • 4.58.2 to < unspecifiedunaffected
  • 4.58.0 to < unspecifiedaffected
  • 4.57.1 to < unspecifiedunaffected
  • 4.57.0affected
  • 4.56.1 to < unspecifiedunaffected
  • 4.33.0 to < unspecifiedaffected
  • 4.32.3 to < unspecifiedunaffected
  • unspecified to < 4.32.3affected

References