CVE-2020-1900
CVE-2020-1900
This page contains facts from public vulnerability sources. Check the original advisory before updating.
When unserializing an object with dynamic properties HHVM needs to pre-reserve the full size of the dynamic property array before inserting anything into it. Otherwise the array might resize, invalidating previously stored references. This pre-reservation was not occurring in 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.
CVSS 9.8 · Critical · EPSS 1.4% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
hhvm
- Versions
- ≥ 4.62.1, < unspecified: Not affected (custom)
- 4.62.0: Affected
- ≥ 4.61.1, < unspecified: Not affected (custom)
- 4.61.0: Affected
- ≥ 4.60.1, < unspecified: Not affected (custom)
- 4.60.0: Affected
- ≥ 4.59.1, < unspecified: Not affected (custom)
- 4.59.0: Affected
- ≥ 4.58.2, < unspecified: Not affected (custom)
- ≥ 4.58.0, < unspecified: Affected (custom)
- ≥ 4.57.1, < unspecified: Not affected (custom)
- 4.57.0: Affected
- ≥ 4.56.1, < unspecified: Not affected (custom)
- ≥ 4.33.0, < unspecified: Affected (custom)
- ≥ 4.32.3, < unspecified: Not affected (custom)
- ≥ unspecified, < 4.32.3: Affected (custom)
Update to 4.32.3
hhvm Ubuntu:16.04:LTS
- Versions
- 3.11.0+dfsg-1
- 3.11.1+dfsg-1
- 3.11.1+dfsg-1ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
hhvm Ubuntu:18.04:LTS
- Versions
- 3.21.0+dfsg-2
- 3.21.0+dfsg-2build1
- 3.21.0+dfsg-2build2
- 3.21.0+dfsg-2build3
- 3.21.0+dfsg-2ubuntu2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published