CVE-2020-27297 Memory corruption in OPC UA Tunneller
A heap-based buffer overflow in the OPC UA Tunneller allows remote attackers to execute arbitrary code via memory manipulation.
- 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-2020-27297?
CVE-2020-27297 is a critical memory corruption vulnerability in OPC UA Tunneller, published on 26 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The affected product is vulnerable to a heap-based buffer overflow, which may allow an attacker to manipulate memory with controlled values and remotely execute code on the OPC UA Tunneller (versions prior to 6.3.0.8233).
Which versions are affected by CVE-2020-27297?
It affects 1 product.
Products include Honeywell Opc Ua Tunneller.
How do I fix CVE-2020-27297?
No fix has been published for CVE-2020-27297 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-2020-27297 being exploited?
There is no known exploitation of CVE-2020-27297 in the wild and no public exploit code.
Other vulnerabilities in OPC UA Tunneller
Sources
Also known as GHSA-qprq-p274-84fq.