Descripción
A use-of-uninitialized memory vulnerability exists in libxls 1.6.3 when parsing malformed XLS files. The issue is reachable via xls_parseWorkBook() and is triggered by uninitialized heap memory originating from the OLE layer (ole2_read). The flaw is detectable with MemorySanitizer (MSAN) and can lead to undefined behavior, incorrect parsing logic, or potential information disclosure.
CVSS 5.3EPSS 0.214%Riesgo 0.54
Ver fuente- Publicación
- 2026-06-03 20:16:18
- Versiones afectadas
- ==1.6.3
- Tipo
- Package
- Última modificación
- 2026-07-22 20:10:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N