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I. Basic Information for CVE-2021-25633
Vulnerability Information

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Vulnerability Title
Content Manipulation with Double Certificate Attack
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
证书验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
LibreOffice 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LibreOffice是文档基金会(The Document Foundation,tdf)的一套开源的办公软件套件。该产品包含Writer(文本文档)、Calc(电子表格)和Impress(演示文稿)等应用程序。 LibreOffice 7.0.6之前的7.0版本,7.1.2之前的7.1版本存在信任管理问题漏洞,攻击者可利用该漏洞通过操纵文档中的documentsignatures.xml或macrosignatures.xml流来组合多个证书数据,从而创建数字签名的ODF文档,打开时,会导致Libre
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
The Document FoundationLibreOffice 7-0 ~ 7.0.6 -
II. Public POCs for CVE-2021-25633
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III. Intelligence Information for CVE-2021-25633
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IV. Related Vulnerabilities
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