Description (CNA)
LibreOffice converts CFF fonts to Type 1 when it subsets a font, which happens when a document is exported to PDF, and CFF fonts may be embedded in documents. A stack buffer overflow existed in that conversion. The converted operators were written into a fixed size buffer with no check that they still fit, so a glyph emitting many operators wrote past the end of the buffer. In fixed versions the remaining capacity is tracked and the conversion stops when it is used up.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| The Document Foundation / LibreOffice | affected 26.2 before < 26.2.5 |
CWE
CWE-787
References
ADP enrichment
No English description supplied.
No references supplied.