CVE-2019-6135 Denial of service in n/a

High 7.5 Published Updated

A memory leak in libIEC61850 allows attackers to cause a denial of service by exhausting system memory through repeated ASN.1 primitive value creation.

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-2019-6135?

CVE-2019-6135 is a high-severity denial of service vulnerability in n/a, published on 11 Jan 2019. 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 v1.3.1. Memory_malloc in hal/memory/lib_memory.c has a memory leak when called from Asn1PrimitiveValue_create in mms/asn1/asn1_ber_primitive_value.c, as demonstrated by goose_publisher_example.c and iec61850_9_2_LE_example.c.

Weakness: CWE-401

Which versions are affected by CVE-2019-6135?

It affects 1 product.

Products include Mz-Automation Libiec61850.

How do I fix CVE-2019-6135?

No fix has been published for CVE-2019-6135 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-2019-6135 being exploited?

There is no known exploitation of CVE-2019-6135 in the wild and no public exploit code.

Sources

Also known as GHSA-p535-jvv7-f34m.

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