Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Facebook / HHVM | unaffected 4.98.1 before unspecified; affected 4.98.0; unaffected 4.97.1 before unspecified; affected 4.97.0; unaffected 4.96.1 before unspecified; affected 4.96.0; unaffected 4.95.1 before unspecified; affected 4.95.0; unaffected 4.94.1 before unspecified; affected 4.94.0; unaffected 4.93.2 before unspecified; affected 4.81.0 before unspecified; unaffected 4.80.2 before unspecified; affected 4.57.0 before unspecified; unaffected 4.56.3 before unspecified; affected unspecified before 4.56.3 |
CWE
CWE-127
References
- https://hhvm.com/blog/2021/02/25/security-update.html
- https://github.com/facebook/hhvm/commit/08193b7f0cd3910256e00d599f0f3eb2519c44ca
ADP enrichment
No English description supplied.