CVE-2026-63276: The Document Foundation LibreOffice, грешка в паметта

Описание

Оригинално описание

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.

Засегнати продукти

• The Document Foundation LibreOffice: 26.2 преди < 26.2.5

Вид слабост

• CWE-787 Out-of-bounds Write

История

Други уязвимости в The Document Foundation LibreOffice

• 6.7CVE-2026-63270
• 6.7CVE-2026-63269
• 6.7CVE-2026-63268
• 6.7CVE-2026-63267
• 6.8CVE-2026-63266

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-63276
• https://nvd.nist.gov/vuln/detail/CVE-2026-63276
• https://www.libreoffice.org/about-us/security/advisories/cve-2026-63276