CVE-2020-1892
moderate-risk
Published 2020-03-03
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 prior to 4.8.7.
Do I need to act?
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0.61% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.1/10
High
NETWORK
/ LOW complexity
Affected Vendors
References (4)
Vendor Advisory
https://hhvm.com/blog/2020/02/20/security-update.html
Vendor Advisory
https://hhvm.com/blog/2020/02/20/security-update.html
44
/ 100
moderate-risk
Severity
28/34 · Critical
Exploitability
2/34 · Minimal
Exposure
14/34 · Moderate