CVE-2019-9847 Executable hyperlink targets executed unconditionally on activation
Attackers can execute arbitrary code by tricking users into clicking hyperlinks pointing to local executables in LibreOffice documents.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2019-9847?
CVE-2019-9847 is a high-severity code injection vulnerability in Libreoffice Libreoffice, published on 9 May 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
A vulnerability in LibreOffice hyperlink processing allows an attacker to construct documents containing hyperlinks pointing to the location of an executable on the target users file system. If the hyperlink is activated by the victim the executable target is unconditionally launched. Under Windows and macOS when processing a hyperlink target explicitly activated by the user there was no judgment made on whether the target was an executable file, so such executable targets were launched unconditionally. This issue affects: All LibreOffice Windows and macOS versions prior to 6.1.6; LibreOffice Windows and macOS versions in the 6.2 series prior to 6.2.3.
Weakness: CWE-20
Which versions are affected by CVE-2019-9847?
It affects 1 product.
Products include Libreoffice Libreoffice.
How do I fix CVE-2019-9847?
No fix has been published for CVE-2019-9847 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2019-9847 being exploited?
There is no known exploitation of CVE-2019-9847 in the wild and no public exploit code.
Other vulnerabilities in Libreoffice Libreoffice
Sources
Also known as GHSA-cxqx-7gmj-4vg7.