CVE-2019-13207 Memory corruption in n/a

Critical 9.8 Published Updated

A stack-based buffer overflow in NSD's dname_concatenate function allows attackers to execute arbitrary code or cause denial of service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2019-13207?

CVE-2019-13207 is a critical memory corruption vulnerability in n/a, published on 3 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

nsd-checkzone in NLnet Labs NSD 4.2.0 has a Stack-based Buffer Overflow in the dname_concatenate() function in dname.c.

Weakness: CWE-787

Which versions are affected by CVE-2019-13207?

It affects 1 product.

Products include Nlnetlabs Name Server Daemon.

How do I fix CVE-2019-13207?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2019-13207 being exploited?

There is no known exploitation of CVE-2019-13207 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2019-13207, GHSA-mgj6-9wrc-v2rp, UBUNTU-CVE-2019-13207.

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