Description (CNA)
xbuf_format_converter, used as part of exif_read_data, was appending a terminating null character to the generated string, but was not using its standard append char function. As a result, if the buffer was full, it would result in an out-of-bounds write. 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-122
References
- https://hhvm.com/blog/2021/02/25/security-update.html
- https://github.com/facebook/hhvm/commit/08193b7f0cd3910256e00d599f0f3eb2519c44ca
ADP enrichment
No English description supplied.