CVE-2017-16229 Ox gem stack overflow in sax_parse
A stack-based buffer over-read in the Ox Ruby gem allows attackers to cause a denial of service via crafted XML input.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2017-16229?
CVE-2017-16229 is a medium-severity memory corruption vulnerability in n/a, published on 26 Feb 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
In the Ox gem 2.8.1 for Ruby, the process crashes with a stack-based buffer over-read in the read_from_str function in sax_buf.c when a crafted input is supplied to sax_parse.
Weakness: CWE-125
Which versions are affected by CVE-2017-16229?
2 open source packages ship an affected version, including ox. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
ox RubyGems | All versions | 2.8.2 |
ox RubyGems | All versions | 2.8.2 |
Products include Ox Project Ox.
How do I fix CVE-2017-16229?
Upgrade ox to 2.8.2 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2017-16229 being exploited?
There is no known exploitation of CVE-2017-16229 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2017-16229, GHSA-wfwm-chj7-w59r, UBUNTU-CVE-2017-16229.