Description (CNA)
libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. From to 1.8.7-r1, a wrong NULL check after an allocation call in sixel_decode_raw and sixel_decode causes a NULL pointer dereference whenever the allocation fails. The check tests the address of the output parameter (always non-NULL) instead of the value the malloc returned. On allocation failure, the function continues and writes through a NULL pointer, crashing the process. This is a denial of service against any caller of these public APIs that hits a low-memory condition. This vulnerability is fixed in 1.8.7-r2.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| saitoha / libsixel | affected >= 1.0.0, < 1.8.7-r2 |
CWE
CWE-476, CWE-690
References
ADP enrichment
No English description supplied.