Overview
- Description
- An Improper Certificate Validation vulnerability in LibreOffice existed where determining if a macro was signed by a trusted author was done by only matching the serial number and issuer string of the used certificate with that of a trusted certificate. This is not sufficient to verify that the macro was actually signed with the certificate. An adversary could therefore create an arbitrary certificate with a serial number and an issuer string identical to a trusted certificate which LibreOffice would present as belonging to the trusted author, potentially leading to the user to execute arbitrary code contained in macros improperly trusted. This issue affects: The Document Foundation LibreOffice 7.2 versions prior to 7.2.7; 7.3 versions prior to 7.3.1.
- Source
- security@documentfoundation.org
- NVD status
- Modified
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.5
- Impact score
- 5.9
- Exploitability score
- 1.6
- Vector string
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- Severity
- HIGH
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "20BCBB73-64D6-44F0-8B7F-F94269E9EEDA",
"versionEndExcluding": "7.2.7",
"versionStartIncluding": "7.2.0"
},
{
"criteria": "cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2EF12C7E-78D4-435E-BF1C-55F13566DD1D",
"versionEndExcluding": "7.3.2",
"versionStartIncluding": "7.3.0"
}
],
"operator": "OR"
}
]
}
]