CVE-2018-3951 Memory corruption in TP-Link

High 7.2 Published Updated

An attacker with authentication can trigger a buffer overflow in the HTTP server to execute arbitrary code on TP-Link TL-R600VPN devices.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2018-3951?

CVE-2018-3951 is a high-severity memory corruption vulnerability in Talos TP-Link, published on 1 Dec 2018. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

An exploitable remote code execution vulnerability exists in the HTTP header-parsing function of the TP-Link TL-R600VPN HTTP Server. A specially crafted HTTP request can cause a buffer overflow, resulting in remote code execution on the device. An attacker can send an authenticated HTTP request to trigger this vulnerability.

Weakness: CWE-119

Which versions are affected by CVE-2018-3951?

It affects 1 product.

Products include Tp-Link Tl-R600vpn Firmware.

How do I fix CVE-2018-3951?

No fix has been published for CVE-2018-3951 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-2018-3951 being exploited?

There is no known exploitation of CVE-2018-3951 in the wild and no public exploit code.

Sources

Also known as GHSA-9r6w-5369-47xv.

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