CVE-2017-5581 Memory corruption in n/a
A remote VNC server can execute arbitrary code on a TigerVNC client by sending a malformed RRE message with out-of-bounds subrectangles.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-5581?
CVE-2017-5581 is a critical memory corruption vulnerability in n/a, published on 28 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Buffer overflow in the ModifiablePixelBuffer::fillRect function in TigerVNC before 1.7.1 allows remote servers to execute arbitrary code via an RRE message with subrectangle outside framebuffer boundaries.
Weakness: CWE-119
Which versions are affected by CVE-2017-5581?
It affects 1 product.
Products include Tigervnc Tigervnc.
How do I fix CVE-2017-5581?
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-2017-5581 being exploited?
There is no known exploitation of CVE-2017-5581 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2017-5581, GHSA-q2c6-v9x6-qvr4.