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Critical severity9.8NVD Advisory· Published Jul 18, 2019· Updated Jun 17, 2026

CVE-2019-3570

CVE-2019-3570

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

11
  • Facebook/Hiphop Virtual Machine9 versions
    cpe:2.3:a:facebook:hiphop_virtual_machine:*:*:*:*:*:*:*:*+ 8 more
    • cpe:2.3:a:facebook:hiphop_virtual_machine:*:*:*:*:*:*:*:*range: <=3.30.5
    • cpe:2.3:a:facebook:hiphop_virtual_machine:4.1.0:*:*:*:*:*:*:*
    • cpe:2.3:a:facebook:hiphop_virtual_machine:4.2.0:*:*:*:*:*:*:*
    • cpe:2.3:a:facebook:hiphop_virtual_machine:4.3.0:*:*:*:*:*:*:*
    • cpe:2.3:a:facebook:hiphop_virtual_machine:4.4.0:*:*:*:*:*:*:*
    • cpe:2.3:a:facebook:hiphop_virtual_machine:4.5.0:*:*:*:*:*:*:*
    • cpe:2.3:a:facebook:hiphop_virtual_machine:4.6.0:*:*:*:*:*:*:*
    • cpe:2.3:a:facebook:hiphop_virtual_machine:4.7.0:*:*:*:*:*:*:*
    • cpe:2.3:a:facebook:hiphop_virtual_machine:4.8.0:*:*:*:*:*:*:*
  • HHVM/HHVMllm-fuzzy
    Range: 4.3.0, 4.4.0, 4.5.0, 4.6.0, 4.7.0, 4.8.0, 3.30.5 and below, and all versions in the 4.0, 4.1, and 4.2 series
  • Facebook/Hhvmcpe-rescue
    Range: 4.8.1

Patches

Vulnerability mechanics

References

2

News mentions

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