LIBPNG: Chunk smuggling in push-mode APNG parser via unconsumed chunk body
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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| pnggroup | libpng | affected |
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| pnggroup | libpng-apng | affected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||
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| Pnggroup | Libpng |
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| Pnggroup | Libpng |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.202% probability within 30 days)
| Type | Values Removed | Values Added |
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| First Time appeared |
Pnggroup
Pnggroup libpng |
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| Vendors & Products |
Pnggroup
Pnggroup libpng |
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| Metrics |
ssvc
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| References |
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| Type | Values Removed | Values Added |
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| Description | LIBPNG is a reference library for use in applications that process PNG (Portable Network Graphics) raster image files. In version 1.8.0, three inter-frame chunk discard paths in the push-mode APNG parser clear the chunk-header flag without consuming the chunk body and CRC, allowing attacker-controlled bytes inside an ignored ancillary chunk to be reinterpreted as a fresh chunk header on the next call to `png_process_data`. Commit faf06924688b62d7c1654b5ceddedbde66ffadb4 fixes the issue. | |
| Title | LIBPNG: Chunk smuggling in push-mode APNG parser via unconsumed chunk body | |
| Weaknesses | CWE-436 | |
| References |
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| Metrics |
cvssV3_1
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