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TI-2019-07235 Aliases CVE-2019-9853GHSA-52vw-wff4-8w2j

Insufficient URL decoding flaw in categorizing macro location

Priority MEDIUM 40CWE-116Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 7 fixed, 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

LibreOffice documents can contain macros. The execution of those macros is controlled by the document security settings, typically execution of macros are blocked by default. A URL decoding flaw existed in how the urls to the macros within the document were processed and categorized, resulting in the possibility to construct a document where macro execution bypassed the security settings. The documents were correctly detected as containing macros, and prompted the user to their existence within the documents, but macros within the document were subsequently not controlled by the security settings allowing arbitrary macro execution This issue affects: LibreOffice 6.2 series versions prior to 6.2.7; LibreOffice 6.3 series versions prior to 6.3.1.

Why it matters now

EPSS 0.03081 87th percentileScored 2026-11-07
Fix Partial LibreOffice (Document Foundation): 6.2.7, 6.3.1Red Hat: 2 advisoriesRed Hat: 7 fixed, 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
The Document FoundationLibreOffice6.2 series to before 6.2.7; 6.3 series to before 6.3.16.2.7, 6.3.1Patch availableCNA
  • LibreOffice VendorThe Document Foundation Affected 6.2 series to before 6.2.7; 6.3 series to before 6.3.1 Fixed in 6.2.7, 6.3.1 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*6.2.0 to before 6.2.6; 6.3.0 to before 6.3.1VulnerableThe Document Foundation
  • cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:* Versions 6.2.0 to before 6.2.6; 6.3.0 to before 6.3.1 Vulnerable ·The Document Foundation

Remediation

  • Fix · CNA LibreOffice (Document Foundation) Fixed in 6.2.7, 6.3.1

Red Hat 2 advisories

  • RHSA-2020:1598 Released 2020-04-28 · Red Hat rating Moderate
    libreoffice security and bug fix update
    • Red Hat CodeReady Linux Builder (v. 8) libreoffice-gtk2-1:6.0.6.1-20.el8, libreoffice-sdk-1:6.0.6.1-20.el8, libreoffice-sdk-doc-1:6.0.6.1-20.el8 +1
    • Red Hat Enterprise Linux AppStream (v. 8) autocorr-af-1:6.0.6.1-20.el8, autocorr-bg-1:6.0.6.1-20.el8, autocorr-ca-1:6.0.6.1-20.el8 +47
  • RHSA-2020:1151 Released 2020-03-31 · Red Hat rating Moderate
    libreoffice security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) autocorr-af-1:5.3.6.1-24.el7, autocorr-bg-1:5.3.6.1-24.el7, autocorr-ca-1:5.3.6.1-24.el7 +47
    • Red Hat Enterprise Linux Client Optional (v. 7) libreoffice-1:5.3.6.1-24.el7, libreoffice-bsh-1:5.3.6.1-24.el7, libreoffice-gdb-debug-support-1:5.3.6.1-24.el7 +47
    • Red Hat Enterprise Linux Server Optional (v. 7) autocorr-af-1:5.3.6.1-24.el7, autocorr-bg-1:5.3.6.1-24.el7, autocorr-ca-1:5.3.6.1-24.el7 +47
    • Red Hat Enterprise Linux Workstation (v. 7) autocorr-af-1:5.3.6.1-24.el7, autocorr-bg-1:5.3.6.1-24.el7, autocorr-ca-1:5.3.6.1-24.el7 +47
    • Red Hat Enterprise Linux Workstation Optional (v. 7) libreoffice-1:5.3.6.1-24.el7, libreoffice-bsh-1:5.3.6.1-24.el7, libreoffice-gdb-debug-support-1:5.3.6.1-24.el7 +47

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2020:1598
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2020:1598
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2020:1151
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2020:1151
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2020:1151
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2020:1151
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2020:1151

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-9853
  2. 2026-10-03 Alias added: GHSA-52vw-wff4-8w2j

References

Advisory 3

Other 14

  • TI-2019-07233 LibreLogo global-event script execution CVSS 3.1CRITICAL 9.8
  • TI-2018-12068 Path traversal in [UNKNOWN] libreoffice CVSS 3.0CRITICAL 9.8
  • TI-2018-07474 An information disclosure vulnerability occurs when LibreOffice 6.0.3 and Apache… CVSS 3.0HIGH 7.5
  • TI-2019-07230 Code injection in Document Foundation LibreOffice CVSS 3.1CRITICAL 9.8
  • TI-2018-05018 LibreOffice before 5.4.5 and 6.x before 6.0.1 allows remote attackers to read arbitrary… CVSS 3.0CRITICAL 9.8
  • TI-2023-01118 Arbitrary file write in libreoffice CVSS 3.1MEDIUM 5.5
See all 70 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences