CVE-2018-18834 Memory corruption in n/a

Critical 9.8 Published Updated

A heap-based buffer overflow in libIEC61850 allows attackers to execute arbitrary code or cause denial of service via crafted ASN.1 data.

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-2018-18834?

CVE-2018-18834 is a critical memory corruption vulnerability in n/a, published on 30 Oct 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue has been found in libIEC61850 v1.3. It is a heap-based buffer overflow in BerEncoder_encodeOctetString in mms/asn1/ber_encoder.c.

Weakness: CWE-787

Which versions are affected by CVE-2018-18834?

It affects 1 product.

Products include Mz-Automation Libiec61850.

How do I fix CVE-2018-18834?

No fix has been published for CVE-2018-18834 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-2018-18834 being exploited?

There is no known exploitation of CVE-2018-18834 in the wild and no public exploit code.

Sources

Also known as GHSA-5qrf-j6wf-x965.

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