Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Document Foundation | LibreOffice | 6.2 series – < 6.2.7, 6.3 series – < 6.3.1 | 6.2.7 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | libreoffice | 1:6.3.0-1 | — |
| Debian 13 | libreoffice | 1:6.3.0-1 | — |
| Debian 12 | libreoffice | 1:6.3.0-1 | — |
| Debian 10 | libreoffice | 1:6.1.5-3+deb10u3 | DSA-4501-1 |
| Debian 9 | libreoffice | 1:5.2.7-1+deb9u10 | DSA-4501-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 8 | libreoffice | 1:4.3.3-2+deb8u13 | DLA-1947-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | libreoffice | 1:6.0.7-0ubuntu0.18.04.9 | — |
| Ubuntu 16.04 LTS | libreoffice | 1:5.1.6~rc2-0ubuntu1~xenial9 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | autocorr-af +172 | 1:6.0.6.1-20.el8 | RHSA-2020:1598 |
| RHEL 7 | autocorr-af +112 | 1:5.3.6.1-24.el7 | RHSA-2020:1151 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | libreoffice | 6.3.3.2-8.13.1 | SUSE-SU-2020:0121-1 |
| SLES 12 SP5 | bluez | 5.13-5.20.6 | SUSE-SU-2020:0372-1 |
| SLES 12 SP5 | cmis-client | 0.5.2-9.3.1 | SUSE-SU-2020:0372-1 |
| SLES 12 SP5 | gperf | 3.1-19.4.1 | SUSE-SU-2020:0372-1 |
| SLES 12 SP5 | libixion | 0.15.0-13.12.1 | SUSE-SU-2020:0372-1 |
| SLES 12 SP5 | libmwaw | 0.3.15-7.15.1 | SUSE-SU-2020:0372-1 |
| SLES 12 SP5 | liborcus | 0.15.3-10.15.1 | SUSE-SU-2020:0372-1 |
| SLES 12 SP5 | libreoffice | 6.3.3.2-43.59.5 | SUSE-SU-2020:0372-1 |
| SLES 12 SP5 | myspell-dictionaries | 20191016-16.21.1 | SUSE-SU-2020:0372-1 |
| SLES 12 SP4 | bluez | 5.13-5.20.6 | SUSE-SU-2020:0372-1 |
| SLES 12 SP4 | cmis-client | 0.5.2-9.3.1 | SUSE-SU-2020:0372-1 |
| SLES 12 SP4 | gperf | 3.1-19.4.1 | SUSE-SU-2020:0372-1 |
| SLES 12 SP4 | libixion | 0.15.0-13.12.1 | SUSE-SU-2020:0372-1 |
| SLES 12 SP4 | libmwaw | 0.3.15-7.15.1 | SUSE-SU-2020:0372-1 |
| SLES 12 SP4 | liborcus | 0.15.3-10.15.1 | SUSE-SU-2020:0372-1 |
| SLES 12 SP4 | libreoffice | 6.3.3.2-43.59.5 | SUSE-SU-2020:0372-1 |
| SLES 12 SP4 | myspell-dictionaries | 20191016-16.21.1 | SUSE-SU-2020:0372-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | bluez | 5.13-5.20.6 | SUSE-SU-2020:0372-1 |
| SLES for SAP 12 SP4 | bluez | 5.13-5.20.6 | SUSE-SU-2020:0372-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libreoffice | 7.1.5.2-3.13 | openSUSE-SU-2024:10983-1 |
| openSUSE Leap 15.1 | cmis-client | 0.5.2-lp151.3.3.1 | openSUSE-SU-2019:2709-1 |
| openSUSE Leap 15.1 | libixion | 0.15.0-lp151.4.6.1 | openSUSE-SU-2019:2709-1 |
| openSUSE Leap 15.1 | libmwaw | 0.3.15-lp151.2.3.1 | openSUSE-SU-2019:2709-1 |
| openSUSE Leap 15.1 | liborcus | 0.15.3-lp151.3.6.1 | openSUSE-SU-2019:2709-1 |
| openSUSE Leap 15.1 | libreoffice | 6.3.3.2-lp151.3.9.1 | openSUSE-SU-2019:2709-1 |
| openSUSE Leap 15.1 | mdds-1_5 | 1.5.0-lp151.2.1 | openSUSE-SU-2019:2709-1 |
| openSUSE Leap 15.1 | myspell-dictionaries | 20191016-lp151.2.6.1 | openSUSE-SU-2019:2709-1 |
| openSUSE Leap 15.1 | spdlog | 0.16.3-lp151.3.3.1 | openSUSE-SU-2019:2709-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | autocorr-af +171 | 1:6.0.6.1-20.0.1.el8 | ELSA-2020-1598 |
| Oracle Linux 7 | autocorr-af +180 | 1:5.3.6.1-24.0.1.el7 | ELSA-2020-1151 |
Advisories 10
- RHSA-2020:1151 Red Hat Security Advisory: libreoffice security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2020:1598 Red Hat Security Advisory: libreoffice security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-4501-1 libreoffice - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1947-1 libreoffice - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10983-1 libreoffice-7.1.5.2-3.13 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:0121-1 Security update for LibreOffice SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:0372-1 Security update for LibreOffice SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:2709-1 Security update for LibreOffice SUSE / openSUSE Security Updates · May 7, 2025
- ELSA-2020-1598 Moderate: libreoffice security and bug fix update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 5, 2020
- ELSA-2020-1151 Moderate: libreoffice security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 6, 2020
References
- https://www.libreoffice.org/about-us/security/advisories/CVE-2019-9853/
- [debian-lts-announce] 20191006 [SECURITY] [DLA 1947-1] libreoffice security update mailing-list
- FEDORA-2019-4b0cc75996 vendor-advisory
- [openoffice-commits] 20191016 svn commit: r1051583 - in /websites/staging/ooo-site/trunk: cgi-bin/ content/ content/security/cves/CVE-2019-9853.html mailing-list
- [openoffice-commits] 20191016 svn commit: r1868517 - /openoffice/ooo-site/trunk/content/security/cves/CVE-2019-9853.html mailing-list
- [openoffice-commits] 20191016 svn commit: r1868522 - /openoffice/ooo-site/trunk/content/security/bulletin.html mailing-list
- [openoffice-commits] 20191124 svn commit: r1870322 - /openoffice/ooo-site/trunk/content/security/cves/CVE-2019-9853.html mailing-list
- [openoffice-commits] 20191124 svn commit: r1053264 - in /websites/staging/ooo-site/trunk: cgi-bin/ content/ content/security/cves/CVE-2019-9853.html mailing-list
- [openoffice-commits] 20191124 svn commit: r1053267 - in /websites/staging/ooo-site/trunk: cgi-bin/ content/ content/security/cves/CVE-2019-9853.html mailing-list
- [openoffice-commits] 20191124 svn commit: r1870324 - /openoffice/ooo-site/trunk/content/security/cves/CVE-2019-9853.html mailing-list
- [openoffice-commits] 20191124 svn commit: r1870337 - in /openoffice/ooo-site/trunk/content/security/cves: CVE-2019-9853.html CVE-XXXX-YYYY.html mailing-list
- [openoffice-commits] 20191124 svn commit: r1053270 - in /websites/staging/ooo-site/trunk: cgi-bin/ content/ content/security/cves/CVE-2019-9853.html content/security/cves/CVE-XXXX-YYYY.html mailing-list
- [openoffice-commits] 20191124 svn commit: r1053271 - in /websites/staging/ooo-site/trunk: cgi-bin/ content/ content/security/cves/CVE-2019-9853.html content/security/cves/CVE-XXXX-YYYY.html mailing-list
- [openoffice-commits] 20191124 svn commit: r1870336 - in /openoffice/ooo-site/trunk/content/security/cves: CVE-2019-9853.html CVE-XXXX-YYYY.html mailing-list
- openSUSE-SU-2019:2709 vendor-advisory
- 20200220 Open-Xchange Security Advisory 2020-02-19 mailing-list
- http://packetstormsecurity.com/files/156474/Open-Xchange-App-Suite-Documents-Server-Side-Request-Forgery.html