CVE-2020-1899
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2020
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
The unserialize() function supported a type code, "S", which was meant to be supported only for APC serialization. This type code allowed arbitrary memory addresses to be accessed as if they were static StringData objects. 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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
HHVM
- Vendor
- Product
- HHVM
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.62.1 | unaffected | custom | unspecified | Unavailable | None listed |
| 4.62.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 4.61.1 | unaffected | custom | unspecified | Unavailable | None listed |
| 4.61.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 4.60.1 | unaffected | custom | unspecified | Unavailable | None listed |
| 4.60.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 4.59.1 | unaffected | custom | unspecified | Unavailable | None listed |
| 4.59.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 4.58.2 | unaffected | custom | unspecified | Unavailable | None listed |
| 4.58.0 | affected | custom | unspecified | Unavailable | None listed |
| 4.57.1 | unaffected | custom | unspecified | Unavailable | None listed |
| 4.57.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 4.56.1 | unaffected | custom | unspecified | Unavailable | None listed |
| 4.33.0 | affected | custom | unspecified | Unavailable | None listed |
| 4.32.3 | unaffected | custom | unspecified | Unavailable | None listed |
| unspecified | affected | custom | 4.32.3 | Unavailable | None listed |