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.
Metrics
Affected Vendors & Products
References
History
No history.
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Status: PUBLISHED
Assigner: facebook
Published:
Updated: 2024-08-04T06:53:59.646Z
Reserved: 2019-12-02T00:00:00
Link: CVE-2020-1898
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No data.
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Status : Modified
Published: 2021-03-11T01:15:14.177
Modified: 2024-11-21T05:11:34.287
Link: CVE-2020-1898
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No data.