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Document Fdn.CVE-2021-25634

HistoryOct 12, 2021 - 2:15 p.m.

CVE-2021-25634

2021-10-1214:15:08

CWE-295

Document Fdn.

web.nvd.nist.gov

125

cve-2021-25634

libreoffice

improper certificate validation

digital signatures

security vulnerability

nvd

odf document

macros

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

AI Score

5.8

Confidence

High

EPSS

0.002

Percentile

52.0%

JSON

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 modify a digitally signed ODF document to insert an additional signing time timestamp which LibreOffice would incorrectly present as a valid signature signed at the bogus signing time. This issue affects: The Document Foundation LibreOffice 7-0 versions prior to 7.0.6; 7-1 versions prior to 7.1.2.

Affected configurations

Nvd

Node

libreofficelibreofficeRange7.0.0–7.0.6

libreofficelibreofficeRange7.1.0–7.1.2

Node

debiandebian_linuxMatch11.0

VendorProductVersionCPE
libreofficelibreoffice*cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*
debiandebian_linux11.0cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
libreoffice	libreoffice	*	cpe:2.3:a:libreoffice:libreoffice::::::::
debian	debian_linux	11.0	cpe:2.3:o:debian:debian_linux:11.0:::::::*

CNA Affected

[
  {
    "product": "LibreOffice",
    "vendor": "The Document Foundation",
    "versions": [
      {
        "lessThan": "7.0.6",
        "status": "affected",
        "version": "7-0",
        "versionType": "custom"
      },
      {
        "lessThan": "7.1.2",
        "status": "affected",
        "version": "7-1",
        "versionType": "custom"
      }
    ]
  }
]