CVE-2014-0777 OServer Out of Bounds Read
Remote attackers can cause a denial of service in IOServer OPC Drivers via crafted Modbus packets, impacting industrial control systems.
- 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-2014-0777?
CVE-2014-0777 is a high-severity denial of service vulnerability in IOServer OPC Drivers, published on 11 Apr 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Modbus slave/outstation driver in the OPC Drivers 1.0.20 and earlier in IOServer OPC Server allows remote attackers to cause a denial of service (out-of-bounds read and daemon crash) via a crafted packet.
Which versions are affected by CVE-2014-0777?
It affects 2 products.
Products include Ioserver Ioserver Opc Server, Ioserver Opc Drivers.
How do I fix CVE-2014-0777?
No fix has been published for CVE-2014-0777 yet. Limit exposure of the affected software until one is available.
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-2014-0777 being exploited?
There is no known exploitation of CVE-2014-0777 in the wild and no public exploit code.
Sources
Also known as GHSA-p75m-894q-gmxh.