CVE-2016-2827 Denial of service in n/a
Remote attackers can crash Mozilla Firefox via a crafted Content Security Policy referrer directive, causing an out-of-bounds read.
- 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-2016-2827?
CVE-2016-2827 is a medium-severity denial of service vulnerability in Mozilla Firefox, published on 22 Sep 2016. 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
The mozilla::net::IsValidReferrerPolicy function in Mozilla Firefox before 49.0 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a Content Security Policy (CSP) referrer directive with zero values.
Weakness: CWE-125
Which versions are affected by CVE-2016-2827?
It affects 1 product.
Products include Mozilla Firefox.
How do I fix CVE-2016-2827?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2016-2827 being exploited?
There is no known exploitation of CVE-2016-2827 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as GHSA-942w-8v4f-46qw, UBUNTU-CVE-2016-2827.