CVE-2015-0799 Security feature bypass in n/a
Man-in-the-middle attackers can bypass X.509 certificate verification in Firefox via HTTP/2 Alt-Svc headers, requiring user interaction.
- 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-2015-0799?
CVE-2015-0799 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 8 Apr 2015. 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 HTTP Alternative Services feature in Mozilla Firefox before 37.0.1 allows man-in-the-middle attackers to bypass an intended X.509 certificate-verification step for an SSL server by specifying that server in the uri-host field of an Alt-Svc HTTP/2 response header.
Weakness: CWE-20
Which versions are affected by CVE-2015-0799?
It affects 3 products.
Products include Canonical Ubuntu Linux, Mozilla Firefox, Opensuse Opensuse.
How do I fix CVE-2015-0799?
Upgrade to a fixed version.
Is CVE-2015-0799 being exploited?
There is no known exploitation of CVE-2015-0799 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as GHSA-5mp2-hvxf-rx92, UBUNTU-CVE-2015-0799, USN-2557-1.