CVE-2021-25633
libreoffice - security update
描述
LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual aids that no alteration of the document occurred since the last signing and that the signature is valid. An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to create a digitally signed ODF document, by manipulating the documentsignatures.xml or macrosignatures.xml stream within the document to combine multiple certificate data, which when opened caused LibreOffice to display a validly signed indicator but whose content was unrelated to the signature shown. This issue affects: The Document Foundation LibreOffice 7-0 versions prior to 7.0.6; 7-1 versions prior to 7.1.2.
如何修補 CVE-2021-25633
要修補 CVE-2021-25633,請將受影響套件升級到下列已修補版本。
- —升級至 1:7.0.4-4+deb11u1 或更新版本
- —升級至 1:7.0.4-4+deb11u1 或更新版本
CVE-2021-25633 正在被利用嗎?
低 — EPSS 為 0.7%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 1:7.0.4-4+deb11u1
- from 0, < 1:7.0.4-4+deb11u1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |