CVE-2020-1893 (NVD)

2020-03-03

Insufficient boundary checks when decoding JSON in TryParse reads out of bounds memory, potentially leading to 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.

Products Hhvm
Type Out-of-bounds Read (CWE-125)
First patch - None (likely due to unavailable code)
Links https://github.com/facebook/hhvm/commit/bd586671a3c22eb2f07e55f11b3ce64e1f7961e7
https://hhvm.com/blog/2020/02/20/security-update.html