| Package | Affected versions | Patched versions |
|---|---|---|
| sumatrapdf | ≤ 3.5.2 |
SumatraPDF is a multi-format reader for Windows. In 3.5.2 and earlier, a heap out-of-bounds read vulnerability exists in SumatraPDF's MOBI HuffDic decompressor. The bounds check in AddCdicData() only validates half the range that DecodeOne() actually accesses. Opening a crafted .mobi file can read nearly (1 << codeLength) bytes beyond the CDIC dictionary buffer, leading to a crash.
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free