CVE-2023-29549 Security feature bypass in Firefox
Incorrect realm handling in bind function allows bypassing JavaScript sandbox protections in Firefox and Focus for Android.
- 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-2023-29549?
CVE-2023-29549 is a medium-severity 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
Under certain circumstances, a call to the <code>bind</code> function may have resulted in the incorrect realm. This may have created a vulnerability relating to JavaScript-implemented sandboxes such as SES. This vulnerability affects Firefox for Android < 112, Firefox < 112, and Focus for Android < 112.
Weakness: CWE-326
Which versions are affected by CVE-2023-29549?
It affects 3 products.
Products include Mozilla Firefox, Mozilla Firefox Mobile, Mozilla Focus.
How do I fix CVE-2023-29549?
Upgrade to a fixed version.
Is CVE-2023-29549 being exploited?
There is no known exploitation of CVE-2023-29549 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as GHSA-x5mh-3hvm-9j36, UBUNTU-CVE-2023-29549.