8.1
CVSSv3

CVE-2020-1892

Published: 03/03/2020 Updated: 05/03/2020
CVSS v2 Base Score: 6.4 | Impact Score: 4.9 | Exploitability Score: 10
CVSS v3 Base Score: 8.1 | Impact Score: 5.2 | Exploitability Score: 2.8
VMScore: 570
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:P

Vulnerability Summary

Insufficient boundary checks when decoding JSON in JSON_parser allows read access to out of bounds memory, potentially leading to information leak and DOS. This issue affects HHVM 4.45.0, 4.44.0, 4.43.0, 4.42.0, 4.41.0, 4.40.0, 4.39.0, versions between 4.33.0 and 4.38.0 (inclusive), versions between 4.9.0 and 4.32.0 (inclusive), and versions before 4.8.7.

Vulnerability Trend

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facebook hhvm 4.39.0

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facebook hhvm 4.41.0

facebook hhvm 4.42.0

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facebook hhvm 4.44.0

facebook hhvm 4.45.0