SAIL: WebP decoder division by zero through malformed animated canvas metadata
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| HappySeaFox | sail | affected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Happyseafox | Sail |
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No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.125% probability within 30 days)
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| First Time appeared |
Happyseafox
Happyseafox sail |
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| Vendors & Products |
Happyseafox
Happyseafox sail |
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| Description | SAIL is a cross-platform library for loading and saving images with support for animation, metadata, and ICC profiles. Prior to version 1.0.2, the built-in WebP decoder can crash during loader initialization when processing a malformed animated WebP file with inconsistent container or `ANMF` frame metadata. In `sail_codec_load_init_v8_webp()` in `src/sail-codecs/webp/webp.c`, `WebPDemuxGetI` with `WEBP_FF_CANVAS_WIDTH` can return a zero `image_local->width`, which is then used as a divisor when calculating `bytes_per_pixel` from the image row size. The division happens before frame decoding and before generic image skeleton validation in `src/sail/sail_advanced.c`, causing an arithmetic fault and process termination. Applications accepting untrusted WebP images can consequently suffer denial of service; builds must include the affected WebP codec. This issue is fixed in version 1.0.2. | |
| Title | SAIL: WebP decoder division by zero through malformed animated canvas metadata | |
| Weaknesses | CWE-369 | |
| References |
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| Metrics |
cvssV4_0
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