CVE-2016-2146 Denial of service in n/a

What is CVE-2016-2146?

CVE-2016-2146 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 15 Apr 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The am_read_post_data function in mod_auth_mellon before 0.11.1 does not limit the amount of data read, which allows remote attackers to cause a denial of service (worker process crash, web server deadlock, or memory consumption) via a large amount of POST data.

Weakness: CWE-119

Which versions are affected by CVE-2016-2146?

It affects 2 products.

Products include Fedoraproject Fedora, Uninett Mod Auth Mellon.

How do I fix CVE-2016-2146?

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-2016-2146 being exploited?

There is no known exploitation of CVE-2016-2146 in the wild and no public exploit code.

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All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2016-2146, GHSA-cm8g-34xp-fvpw.