CVE-2020-1918
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)
In-memory file operations (ie: using fopen on a data URI) did not properly restrict negative seeking, allowing for the reading of memory prior to the in-memory buffer. This issue affects HHVM versions prior to 4.56.3, all versions between 4.57.0 and 4.80.1, all versions between 4.81.0 and 4.93.1, and versions 4.94.0, 4.95.0, 4.96.0, 4.97.0, 4.98.0.
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) |
|---|---|---|---|---|---|
| 4.98.1 | unaffected | custom | unspecified | Unavailable | None listed |
| 4.98.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 4.97.1 | unaffected | custom | unspecified | Unavailable | None listed |
| 4.97.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 4.96.1 | unaffected | custom | unspecified | Unavailable | None listed |
| 4.96.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 4.95.1 | unaffected | custom | unspecified | Unavailable | None listed |
| 4.95.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 4.94.1 | unaffected | custom | unspecified | Unavailable | None listed |
| 4.94.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 4.93.2 | unaffected | custom | unspecified | Unavailable | None listed |
| 4.81.0 | affected | custom | unspecified | Unavailable | None listed |
| 4.80.2 | unaffected | custom | unspecified | Unavailable | None listed |
| 4.57.0 | affected | custom | unspecified | Unavailable | None listed |
| 4.56.3 | unaffected | custom | unspecified | Unavailable | None listed |
| unspecified | affected | custom | 4.56.3 | Unavailable | None listed |