CVE-2026-63276 : 詳細

CVE-2026-63276

2026-09-22
12h17 +00:00
Overflow
2026-09-22
19h09 +00:00
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CVE の説明

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.

CVE の情報

関連する弱点

CWE-ID 弱点名 出典
CWE-787 Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.

参考資料