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.
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: facebook
Published:
Updated: 2024-08-04T06:53:59.646Z
Reserved: 2019-12-02T00:00:00
Link: CVE-2020-1898
 Vulnrichment
                        Vulnrichment
                    No data.
 NVD
                        NVD
                    Status : Modified
Published: 2021-03-11T01:15:14.177
Modified: 2024-11-21T05:11:34.287
Link: CVE-2020-1898
 Redhat
                        Redhat
                    No data.