ΠΠΏΠΈΡΠ°Π½ΠΈΠ΅
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)
Π‘ΠΏΠΈΡΠΎΠΊ ΠΏΠ°ΠΊΠ΅ΡΠΎΠ²
SUSE Linux Enterprise Workstation Extension 15
Π‘ΡΡΠ»ΠΊΠΈ
- Link for SUSE-SU-2019:2686-1
- E-Mail link for SUSE-SU-2019:2686-1
- SUSE Security Ratings
- SUSE Bug 1149943
- SUSE Bug 1149944
- SUSE CVE CVE-2019-9854 page
- SUSE CVE CVE-2019-9855 page
ΠΠΏΠΈΡΠ°Π½ΠΈΠ΅
LibreOffice has a feature where documents can specify that pre-installed macros can be executed on various script events such as mouse-over, document-open etc. Access is intended to be restricted to scripts under the share/Scripts/python, user/Scripts/python sub-directories of the LibreOffice install. Protection was added, to address CVE-2019-9852, to avoid a directory traversal attack where scripts in arbitrary locations on the file system could be executed by employing a URL encoding attack to defeat the path verification step. However this protection could be bypassed by taking advantage of a flaw in how LibreOffice assembled the final script URL location directly from components of the passed in path as opposed to solely from the sanitized output of the path verification step. This issue affects: Document Foundation LibreOffice 6.2 versions prior to 6.2.7; 6.3 versions prior to 6.3.1.
ΠΠ°ΡΡΠΎΠ½ΡΡΡΠ΅ ΠΏΡΠΎΠ΄ΡΠΊΡΡ
Π‘ΡΡΠ»ΠΊΠΈ
- CVE-2019-9854
- SUSE Bug 1149944
ΠΠΏΠΈΡΠ°Π½ΠΈΠ΅
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.
ΠΠ°ΡΡΠΎΠ½ΡΡΡΠ΅ ΠΏΡΠΎΠ΄ΡΠΊΡΡ
Π‘ΡΡΠ»ΠΊΠΈ
- CVE-2019-9855
- SUSE Bug 1149943