CVE-2017-12957 Denial of service in n/a
A heap-based buffer over-read in Exiv2 allows remote attackers to cause a denial of service via crafted image files.
- 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-2017-12957?
CVE-2017-12957 is a medium-severity denial of service vulnerability in Exiv2 Exiv2, published on 18 Aug 2017. 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
There is a heap-based buffer over-read in libexiv2 in Exiv2 0.26 that is triggered in the Exiv2::Image::io function in image.cpp. It will lead to remote denial of service.
Weakness: CWE-125
Which versions are affected by CVE-2017-12957?
It affects 1 product.
Products include Exiv2 Exiv2.
How do I fix CVE-2017-12957?
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-2017-12957 being exploited?
There is no known exploitation of CVE-2017-12957 in the wild and no public exploit code.
Other vulnerabilities in Exiv2 Exiv2
Sources
Also known as GHSA-wcg7-3rc6-c7jg.