Описание
LibreOffice can import drawings in the DXF format used by CAD software. A heap buffer overflow existed when importing a DXF polyline. The point count taken from the file was truncated to a 16-bit value when the point buffer was sized, while the full count was used to fill it, so a polyline whose point count exceeded the 16-bit range was written past the end of the buffer. In fixed versions such oversized polylines are rejected.
A flaw was found in LibreOffice. This vulnerability, a heap buffer overflow, occurs when processing specially crafted DXF (Drawing Exchange Format) polyline files. An attacker could exploit this by convincing a user to open a malicious DXF file, which may lead to a denial of service (DoS) due to application instability and system unavailability.
Отчет
This Moderate impact flaw in LibreOffice, a desktop productivity suite, is due to a heap buffer overflow when processing malformed DXF polyline files. An attacker could exploit this by tricking a user into opening a specially crafted DXF file, leading to application instability and potential denial of service. This issue primarily affects desktop environments where LibreOffice is used to open untrusted drawing files.
Меры по смягчению последствий
Users should exercise caution when opening DXF files from untrusted sources. Restricting the processing of untrusted or unverified DXF documents can reduce the risk of exploitation.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | libreoffice | Out of support scope | ||
| Red Hat Enterprise Linux 7 | libreoffice | Out of support scope | ||
| Red Hat Enterprise Linux 8 | libreoffice | Fix deferred | ||
| Red Hat Enterprise Linux 9 | libreoffice | Fix deferred |
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Дополнительная информация
Статус:
5.5 Medium
CVSS3
Связанные уязвимости
LibreOffice can import drawings in the DXF format used by CAD software. A heap buffer overflow existed when importing a DXF polyline. The point count taken from the file was truncated to a 16-bit value when the point buffer was sized, while the full count was used to fill it, so a polyline whose point count exceeded the 16-bit range was written past the end of the buffer. In fixed versions such oversized polylines are rejected.
LibreOffice can import drawings in the DXF format used by CAD software. A heap buffer overflow existed when importing a DXF polyline. The point count taken from the file was truncated to a 16-bit value when the point buffer was sized, while the full count was used to fill it, so a polyline whose point count exceeded the 16-bit range was written past the end of the buffer. In fixed versions such oversized polylines are rejected.
LibreOffice can import drawings in the DXF format used by CAD software ...
LibreOffice can import drawings in the DXF format used by CAD software. A heap buffer overflow existed when importing a DXF polyline. The point count taken from the file was truncated to a 16-bit value when the point buffer was sized, while the full count was used to fill it, so a polyline whose point count exceeded the 16-bit range was written past the end of the buffer. In fixed versions such oversized polylines are rejected.
Уязвимость пакета офисных программ LibreOffice, связанная с переполнением буфера в динамической памяти, позволяющая нарушителю вызвать отказ в обслуживании
5.5 Medium
CVSS3