ImageSharp: Tiled fax TIFF: tile buffer sized by TileWidth but fax decompressor writes scanlines of ImageWidth — heap OOB write
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| SixLabors | ImageSharp | affected |
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| Sixlabors | Imagesharp |
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| Source | ID | Title |
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Github GHSA |
GHSA-v76p-62qx-wwq2 | ImageSharp: Tiled fax TIFF: tile buffer sized by TileWidth but fax decompressor writes scanlines of ImageWidth — heap OOB write |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.595% probability within 30 days)
| Type | Values Removed | Values Added |
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| First Time appeared |
Sixlabors
Sixlabors imagesharp |
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| Vendors & Products |
Sixlabors
Sixlabors imagesharp |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| Description | ImageSharp is a 2D graphics library. From 3.0.0 until 4.1.1, tiled TIFF decoding allocates a destination buffer using TileWidth but TiffDecompressorsFactory.Create constructs T4, T6, and Modified Huffman decompressors using the full frame width. TiffDecoderCore.DecodeTilesChunky can therefore direct frame-width fax scanlines into a tile-width buffer when TileWidth is smaller than ImageWidth. The mismatch causes attacker-controlled out-of-bounds writes, heap corruption, and process termination even with legal per-row run codes. This tiled-path vulnerability is distinct from oversized CCITT runs in strip decoding. This issue is fixed in version 4.1.1. | |
| Title | ImageSharp: Tiled fax TIFF: tile buffer sized by TileWidth but fax decompressor writes scanlines of ImageWidth — heap OOB write | |
| Weaknesses | CWE-787 | |
| References |
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| Metrics |
cvssV3_1
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