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CVE-2020-1917 xbuf_format_converter, used as part of exif_read_data, was appending a terminating null character to the generated…
Description
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.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| HHVM | 4.98.0 | 4.98.1 |
| HHVM | 4.97.0 | 4.97.1 |
| HHVM | 4.96.0 | 4.96.1 |
| HHVM | 4.95.0 | 4.95.1 |
| HHVM | 4.94.0 | 4.94.1 |
| HHVM 4.93 | premières → < 4.93.2 | 4.93.2 |
| HHVM 4.81 | 4.81.0 → dernières | Pas de correctif indiqué |
| HHVM 4.80 | premières → < 4.80.2 | 4.80.2 |
| HHVM 4.57 | 4.57.0 → dernières | Pas de correctif indiqué |
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| Produit | Versions touchées | Corrigé en |
|---|---|---|
| HHVM 4.56 | premières → < 4.56.3 | 4.56.3 |
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