CVE-2023-29541 Code injection in Firefox
Attackers can execute arbitrary commands on Linux systems by tricking users into downloading malicious .desktop files via Firefox.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2023-29541?
CVE-2023-29541 is a high-severity code injection vulnerability in Mozilla Firefox, published on 2 Jun 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Firefox did not properly handle downloads of files ending in <code>.desktop</code>, which can be interpreted to run attacker-controlled commands. <br>*This bug only affects Firefox for Linux on certain Distributions. Other operating systems are unaffected, and Mozilla is unable to enumerate all affected Linux Distributions.*. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.
Weakness: CWE-116
Which versions are affected by CVE-2023-29541?
It affects 5 products.
Products include Mozilla Firefox, Mozilla Firefox Esr, Mozilla Firefox Mobile, Mozilla Focus, Mozilla Thunderbird.
How do I fix CVE-2023-29541?
Upgrade to a fixed version.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2023-29541 being exploited?
There is no known exploitation of CVE-2023-29541 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as DEBIAN-CVE-2023-29541, GHSA-wm65-g4q2-jh7c, UBUNTU-CVE-2023-29541.