VYPR
← All advisories
High severity7.5NVD Advisory· Published Mar 11, 2021· Updated Jun 17, 2026

CVE-2020-1898

CVE-2020-1898

Description

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.

AI Insight

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

Affected products

11
  • Facebook/Hhvm10 versions
    cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*+ 9 more
    • cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*range: <4.32.3
    • cpe:2.3:a:facebook:hhvm:4.57.0:*:*:*:*:*:*:*
    • cpe:2.3:a:facebook:hhvm:4.58.0:*:*:*:*:*:*:*
    • cpe:2.3:a:facebook:hhvm:4.58.1:*:*:*:*:*:*:*
    • cpe:2.3:a:facebook:hhvm:4.59.0:*:*:*:*:*:*:*
    • cpe:2.3:a:facebook:hhvm:4.60.0:*:*:*:*:*:*:*
    • cpe:2.3:a:facebook:hhvm:4.61.0:*:*:*:*:*:*:*
    • cpe:2.3:a:facebook:hhvm:4.62.0:*:*:*:*:*:*:*
    • (no CPE)range: <4.32.3, 4.33.0-4.56.0, 4.57.0, 4.58.0, 4.58.1, 4.59.0, 4.60.0, 4.61.0, 4.62.0
    • (no CPE)range: 4.62.0
  • HHVM/HHVMllm-fuzzy
    Range: <4.32.3, 4.33.0-4.56.0, 4.57.0, 4.58.0, 4.58.1, 4.59.0, 4.60.0, 4.61.0, 4.62.0

Patches

Vulnerability mechanics

References

2

News mentions

0

No linked articles in our index yet.