CVE-2019-18858 Memory corruption in n/a
A buffer overflow in the CODESYS web server allows attackers to execute arbitrary code or 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
- None listed
What is CVE-2019-18858?
CVE-2019-18858 is a critical memory corruption vulnerability in Codesys Control Runtime System Toolkit, published on 20 Nov 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
CODESYS 3 web server before 3.5.15.20, as distributed with CODESYS Control runtime systems, has a Buffer Overflow.
Weakness: CWE-120
Which versions are affected by CVE-2019-18858?
It affects 14 products.
Products include Codesys Control for Beaglebone, Codesys Control for Empc-A\/Imx6, Codesys Control for Iot2000, Codesys Control for Linux, Codesys Control for Pfc100, Codesys Control for Pfc200 and 8 more.
How do I fix CVE-2019-18858?
No fix has been published for CVE-2019-18858 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2019-18858 being exploited?
There is no known exploitation of CVE-2019-18858 in the wild and no public exploit code.
Other vulnerabilities in Codesys Control Runtime System Toolkit
Sources
Also known as GHSA-v33j-h2wh-c582.