Vulnerability Database

289,871

Total vulnerabilities in the database

CVE-2020-1899

The unserialize() function supported a type code, "S", which was meant to be supported only for APC serialization. This type code allowed arbitrary memory addresses to be accessed as if they were static StringData objects. 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.

  • Published: Mar 11, 2021
  • Updated: Apr 13, 2023
  • CVE: CVE-2020-1899
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:P/I:N/A:N

CWEs:

Software From Fixed in
facebook / hhvm 4.58.0 4.58.0.x
facebook / hhvm 4.58.1 4.58.1.x
facebook / hhvm 4.59.0 4.59.0.x
facebook / hhvm 4.60.0 4.60.0.x
facebook / hhvm 4.61.0 4.61.0.x
facebook / hhvm 4.62.0 4.62.0.x
facebook / hhvm 4.57.0 4.57.0.x
facebook / hhvm 4.33.0 4.56.1
facebook / hhvm - 4.32.3