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CVE-2019-9855

Windows 8.3 path equivalence handling flaw allows LibreLogo script execution

9.8 CriticalFix available

LibreOffice is typically bundled with LibreLogo, a programmable turtle vector graphics script, which can execute arbitrary python commands contained with the document it is launched from. LibreOffice also has a feature where documents can specify that pre-installed scripts can be executed on various document script events such as mouse-over, etc. Protection was added to block calling LibreLogo from script event handers. However a Windows 8.3 path equivalence handling flaw left LibreOffice vulnerable under Windows that a document could trigger executing LibreLogo via a Windows filename pseudonym. This issue affects: Document Foundation LibreOffice 6.2 versions prior to 6.2.7; 6.3 versions prior to 6.3.1.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.96%Down 5.8 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 9.8

LibreOffice is typically bundled with LibreLogo, a programmable turtle vector graphics script, which can execute arbitrary python commands contained with the document it is launched from. LibreOffice also has a feature where documents can specify that pre-installed scripts can be executed on various document script events such as mouse-over, etc. Protection was added to block calling LibreLogo from script event handers. However a Windows 8.3 path equivalence handling flaw left LibreOffice vulnerable under Windows that a document could trigger executing LibreLogo via a Windows filename pseudonym. This issue affects: Document Foundation LibreOffice 6.2 versions prior to 6.2.7; 6.3 versions prior to 6.3.1.

Record
CVE-2019-9855
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-417
Updated
2026-11-02
CVE List No score

Windows 8.3 path equivalence handling flaw allows LibreLogo script execution

LibreOffice is typically bundled with LibreLogo, a programmable turtle vector graphics script, which can execute arbitrary python commands contained with the document it is launched from. LibreOffice also has a feature where documents can specify that pre-installed scripts can be executed on various document script events such as mouse-over, etc. Protection was added to block calling LibreLogo from script event handers. However a Windows 8.3 path equivalence handling flaw left LibreOffice vulnerable under Windows that a document could trigger executing LibreLogo via a Windows filename pseudonym. This issue affects: Document Foundation LibreOffice 6.2 versions prior to 6.2.7; 6.3 versions prior to 6.3.1.

Record
CVE-2019-9855
Updated
2026-11-02
EUVDEUVD-2019-19211 No score

LibreOffice is typically bundled with LibreLogo, a programmable turtle vector graphics script, which can execute arbitrary python commands contained with the document it is launched from. LibreOffice also has a feature where documents can specify that pre-installed scripts can be executed on various document script events such as mouse-over, etc. Protection was added to block calling LibreLogo from script event handers. However a Windows 8.3 path equivalence handling flaw left LibreOffice vulnerable under Windows that a document could trigger executing LibreLogo via a Windows filename pseudonym. This issue affects: Document Foundation LibreOffice 6.2 versions prior to 6.2.7; 6.3 versions prior to 6.3.1.

Record
EUVD-2019-19211
Updated
2026-11-03
GitHub AdvisoriesGHSA-873f-q5vx-w7hm 9.8

LibreOffice is typically bundled with LibreLogo, a programmable turtle vector graphics script,...

LibreOffice is typically bundled with LibreLogo, a programmable turtle vector graphics script, which can execute arbitrary python commands contained with the document it is launched from. LibreOffice also has a feature where documents can specify that pre-installed scripts can be executed on various document script events such as mouse-over, etc. Protection was added to block calling LibreLogo from script event handers. However a Windows 8.3 path equivalence handling flaw left LibreOffice vulnerable under Windows that a document could trigger executing LibreLogo via a Windows filename pseudonym. This issue affects: Document Foundation LibreOffice 6.2 versions prior to 6.2.7; 6.3 versions prior to 6.3.1.

Record
GHSA-873f-q5vx-w7hm
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVALPINE-CVE-2019-9855 9.8

LibreOffice is typically bundled with LibreLogo, a programmable turtle vector graphics script, which can execute arbitrary python commands contained with the document it is launched from. LibreOffice also has a feature where documents can specify that pre-installed scripts can be executed on various document script events such as mouse-over, etc. Protection was added to block calling LibreLogo from script event handers. However a Windows 8.3 path equivalence handling flaw left LibreOffice vulnerable under Windows that a document could trigger executing LibreLogo via a Windows filename pseudonym. This issue affects: Document Foundation LibreOffice 6.2 versions prior to 6.2.7; 6.3 versions prior to 6.3.1.

Record
ALPINE-CVE-2019-9855
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-03
OSV 9.8

LibreOffice is typically bundled with LibreLogo, a programmable turtle vector graphics script, which can execute arbitrary python commands contained with the document it is launched from. LibreOffice also has a feature where documents can specify that pre-installed scripts can be executed on various document script events such as mouse-over, etc. Protection was added to block calling LibreLogo from script event handers. However a Windows 8.3 path equivalence handling flaw left LibreOffice vulnerable under Windows that a document could trigger executing LibreLogo via a Windows filename pseudonym. This issue affects: Document Foundation LibreOffice 6.2 versions prior to 6.2.7; 6.3 versions prior to 6.3.1.

Record
CVE-2019-9855
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
Show 6 moreShow less
OSVopenSUSE-SU-2019:2183-1 No score

Security update for libreoffice

This update for libreoffice fixes the following issues:

Updated to version 6.2.7.1.

Security issues fixed:

  • CVE-2019-9849: Disabled fetching remote bullet graphics in 'stealth mode' (bsc#1141861).
  • CVE-2019-9848: Fixed an arbitrary script execution via LibreLogo (bsc#1141862).
  • CVE-2019-9851: Fixed LibreLogo global-event script execution issue (bsc#1146105).
  • CVE-2019-9852: Fixed insufficient URL encoding flaw in allowed script location check (bsc#1146107).
  • CVE-2019-9850: Fixed insufficient URL validation that allowed LibreLogo script execution (bsc#1146098).
  • CVE-2019-9854: Fixed unsafe URL assembly flaw (bsc#1149944).
  • CVE-2019-9855: Fixed path equivalence handling flaw (bsc#1149943)

Non-security issue fixed:

  • SmartArt: Basic rendering of Trapezoid List (bsc#1133534).

This update was imported from the SUSE:SLE-15-SP1:Update update project.

Record
openSUSE-SU-2019:2183-1
Updated
2026-11-02
OSVopenSUSE-SU-2019:2361-1 No score

Security update for libreoffice

This update for libreoffice fixes the following issues:

Updated to version 6.2.7.1.

Security issues fixed:

  • CVE-2019-9854: Fixed unsafe URL assembly flaw (bsc#1149944).
  • CVE-2019-9855: Fixed path equivalence handling flaw (bsc#1149943)

This update was imported from the SUSE:SLE-15:Update update project.

Record
openSUSE-SU-2019:2361-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:10983-1 No score

libreoffice-7.1.5.2-3.13 on GA media

These are all security issues fixed in the libreoffice-7.1.5.2-3.13 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10983-1
Updated
2026-11-02
OSVSUSE-SU-2019:2401-1 No score

Security update for libreoffice

This update for libreoffice to version 6.2.7.1 fixes the following issues:

Security issues fixed:

  • CVE-2019-9849: Disabled fetching remote bullet graphics in 'stealth mode' (bsc#1141861).
  • CVE-2019-9848: Fixed an arbitrary script execution via LibreLogo (bsc#1141862).
  • CVE-2019-9851: Fixed LibreLogo global-event script execution issue (bsc#1146105).
  • CVE-2019-9852: Fixed insufficient URL encoding flaw in allowed script location check (bsc#1146107).
  • CVE-2019-9850: Fixed insufficient URL validation that allowed LibreLogo script execution (bsc#1146098).
  • CVE-2019-9854: Fixed unsafe URL assembly flaw (bsc#1149944).
  • CVE-2019-9855: Fixed path equivalence handling flaw (bsc#1149943)

Non-security issue fixed:

  • SmartArt: Basic rendering of Trapezoid List (bsc#1133534)
Record
SUSE-SU-2019:2401-1
Updated
2026-11-02
OSVSUSE-SU-2019:2402-1 No score

Security update for libreoffice

This update for libreoffice fixes the following issues:

Updated to version 6.2.7.1.

Security issues fixed:

  • CVE-2019-9849: Disabled fetching remote bullet graphics in 'stealth mode' (bsc#1141861).
  • CVE-2019-9848: Fixed an arbitrary script execution via LibreLogo (bsc#1141862).
  • CVE-2019-9851: Fixed LibreLogo global-event script execution issue (bsc#1146105).
  • CVE-2019-9852: Fixed insufficient URL encoding flaw in allowed script location check (bsc#1146107).
  • CVE-2019-9850: Fixed insufficient URL validation that allowed LibreLogo script execution (bsc#1146098).
  • CVE-2019-9854: Fixed unsafe URL assembly flaw (bsc#1149944).
  • CVE-2019-9855: Fixed path equivalence handling flaw (bsc#1149943)

Non-security issue fixed:

  • SmartArt: Basic rendering of Trapezoid List (bsc#1133534).
Record
SUSE-SU-2019:2402-1
Updated
2026-11-02
OSVSUSE-SU-2019:2686-1 No score

Security update for libreoffice

This update for libreoffice fixes the following issues:

Updated to version 6.2.7.1.

Security issues fixed:

  • CVE-2019-9854: Fixed unsafe URL assembly flaw (bsc#1149944).
  • CVE-2019-9855: Fixed path equivalence handling flaw (bsc#1149943)
Record
SUSE-SU-2019:2686-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
libreoffice
Alpine:v3.10
6.2.0 up to 6.2.7.1-r0
6.2.7.1-r0
libreoffice
Alpine:v3.11
6.2.0 up to 6.3.1.2-r0
6.3.1.2-r0
libreoffice
Alpine:v3.12
6.2.0 up to 6.3.1.2-r0
6.3.1.2-r0
libreoffice
Alpine:v3.13
6.2.0 up to 6.3.1.2-r0
6.3.1.2-r0
libreoffice
Alpine:v3.14
6.2.0 up to 6.3.1.2-r0
6.3.1.2-r0
libreoffice
Alpine:v3.15
6.2.0 up to 6.3.1.2-r0
6.3.1.2-r0
libreoffice
Alpine:v3.16
6.2.0 up to 6.3.1.2-r0
6.3.1.2-r0
libreoffice
Alpine:v3.17
6.2.0 up to 6.3.1.2-r0
6.3.1.2-r0
libreoffice
Alpine:v3.18
6.2.0 up to 6.3.1.2-r0
6.3.1.2-r0
libreoffice
Alpine:v3.19
6.2.0 up to 6.3.1.2-r0
6.3.1.2-r0
Show 13 moreShow less
Affected packages
PackageAffectedFixed
libreoffice
Alpine:v3.20
6.2.0 up to 6.3.1.2-r0
6.3.1.2-r0
libreoffice
Alpine:v3.21
6.2.0 up to 6.3.1.2-r0
6.3.1.2-r0
libreoffice
Alpine:v3.22
6.2.0 up to 6.3.1.2-r0
6.3.1.2-r0
libreoffice
Alpine:v3.23
6.2.0 up to 6.3.1.2-r0
6.3.1.2-r0
libreoffice
Alpine:v3.24
6.2.0 up to 6.3.1.2-r0
6.3.1.2-r0
libreoffice
SUSE:Linux Enterprise Desktop 12 SP4
before 6.2.7.1-43.56.3
6.2.7.1-43.56.3
libreoffice
SUSE:Linux Enterprise Software Development Kit 12 SP4
before 6.2.7.1-43.56.3
6.2.7.1-43.56.3
libreoffice
SUSE:Linux Enterprise Workstation Extension 12 SP4
before 6.2.7.1-43.56.3
6.2.7.1-43.56.3
libreoffice
SUSE:Linux Enterprise Workstation Extension 15 SP1
before 6.2.7.1-8.10.1
6.2.7.1-8.10.1
libreoffice
SUSE:Linux Enterprise Workstation Extension 15
before 6.2.7.1-3.24.4
6.2.7.1-3.24.4
libreoffice
openSUSE:Leap 15.1
before 6.2.7.1-lp151.3.6.1
6.2.7.1-lp151.3.6.1
libreoffice
openSUSE:Leap 15.0
before 6.2.7.1-lp150.2.19.1
6.2.7.1-lp150.2.19.1
libreoffice
openSUSE:Tumbleweed
before 7.1.5.2-3.13
7.1.5.2-3.13

History

History
RecordedChangedSources
affected, aliases, referencesOSV
aliases, products, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-9855 is a critical vulnerability (CVSS 9.8) in Document Foundation Libreoffice, published September 6, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.96%, the 87th percentile. Fixed in libreoffice 6.2.7.1-r0.

References

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