CVE-2018-20056 Memory corruption in n/a

Critical 9.8 Published Updated

Remote attackers can execute arbitrary code on D-Link DIR-619L and DIR-605L routers via a stack-based buffer overflow in the Boa web server.

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-2018-20056?

CVE-2018-20056 is a critical memory corruption vulnerability in n/a, published on 11 Dec 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in /bin/boa on D-Link DIR-619L Rev.B 2.06B1 and DIR-605L Rev.B 2.12B1 devices. There is a stack-based buffer overflow allowing remote attackers to execute arbitrary code without authentication via the goform/formLanguageChange currTime parameter.

Weakness: CWE-787

Which versions are affected by CVE-2018-20056?

It affects 2 products.

Products include D-Link Dir-605l Firmware, D-Link Dir-619l Firmware.

How do I fix CVE-2018-20056?

No fix has been published for CVE-2018-20056 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-2018-20056 being exploited?

There is no known exploitation of CVE-2018-20056 in the wild and no public exploit code.

Sources

Also known as GHSA-76rc-22jw-c4h3.

Is CVE-2018-20056 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free