CVE-2017-5376 Use after free in Firefox
A use-after-free flaw in XSLT processing allows attackers to execute arbitrary code via malicious XSL documents in Firefox and Thunderbird.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-5376?
CVE-2017-5376 is a critical use after free vulnerability in Debian Debian Linux, published on 11 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Use-after-free while manipulating XSL in XSLT documents. This vulnerability affects Thunderbird < 45.7, Firefox ESR < 45.7, and Firefox < 51.
Weakness: CWE-416
Which versions are affected by CVE-2017-5376?
It affects 9 products.
Products include Debian Debian Linux, Mozilla Firefox, Mozilla Thunderbird, Redhat Enterprise Linux, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server and 3 more.
How do I fix CVE-2017-5376?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2017-5376 being exploited?
There is no known exploitation of CVE-2017-5376 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2017-5376, GHSA-37qh-mjg8-558v, UBUNTU-CVE-2017-5376.