Call to the scrypt_enc() function in HHVM can lead to heap corruption by using specifically crafted parameters (N, r and p). This happens if the parameters are configurable by an attacker for instance by providing the output of scrypt_enc() in a context where Hack/PHP code would attempt to verify it by re-running scrypt_enc() with the same parameters. This could result in information disclosure, memory being overwriten or crashes of the HHVM process. This issue affects versions 4.3.0, 4.4.0, 4.5.0, 4.6.0, 4.7.0, 4.8.0, versions 3.30.5 and below, and all versions in the 4.0, 4.1, and 4.2 series.
History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: facebook

Published: 2019-07-18T15:42:25

Updated: 2019-07-18T15:42:25

Reserved: 2019-01-02T00:00:00


Link: CVE-2019-3570

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2019-07-18T16:15:12.297

Modified: 2020-10-16T15:14:37.373


Link: CVE-2019-3570

JSON object: View

cve-icon Redhat Information

No data.