CVE-2016-9586 Memory corruption in curl
A buffer overflow in libcurl's printf implementation allows remote attackers to execute code or cause denial of service if applications pass unfiltered format strings.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-9586?
CVE-2016-9586 is a medium-severity memory corruption vulnerability in Haxx Curl, published on 23 Apr 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
curl before version 7.52.0 is vulnerable to a buffer overflow when doing a large floating point output in libcurl's implementation of the printf() functions. If there are any application that accepts a format string from the outside without necessary input filtering, it could allow remote attacks.
Which versions are affected by CVE-2016-9586?
It affects 1 product.
Products include Haxx Curl.
How do I fix CVE-2016-9586?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2016-9586 being exploited?
There is no known exploitation of CVE-2016-9586 in the wild and no public exploit code.
Other vulnerabilities in Haxx Curl
Sources
Also known as ALPINE-CVE-2016-9586, CURL-CVE-2016-9586, DEBIAN-CVE-2016-9586, DLA-767-1, GHSA-9xx8-h3pj-h4h9, UBUNTU-CVE-2016-9586.