CVE-2017-13728 Denial of service in n/a

High 7.5 Published Updated

A crafted input triggers an infinite loop in the ncurses library, allowing remote attackers to cause a denial of service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2017-13728?

CVE-2017-13728 is a high-severity denial of service vulnerability in n/a, published on 29 Aug 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

There is an infinite loop in the next_char function in comp_scan.c in ncurses 6.0, related to libtic. A crafted input will lead to a remote denial of service attack.

Weakness: CWE-835

Which versions are affected by CVE-2017-13728?

It affects 1 product.

Products include Invisible-Island Ncurses.

How do I fix CVE-2017-13728?

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-2017-13728 being exploited?

There is no known exploitation of CVE-2017-13728 in the wild and no public exploit code.

Sources

Also known as ALPINE-CVE-2017-13728, DEBIAN-CVE-2017-13728, GHSA-8qvv-3q23-2876, UBUNTU-CVE-2017-13728.

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