CVE-2022-29496 Memory corruption in Blynk-Library

Critical 9.0 Published Updated

A stack-based buffer overflow in the Blynk library allows remote attackers to execute arbitrary commands via a specially crafted network request.

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-2022-29496?

CVE-2022-29496 is a critical memory corruption vulnerability in Blynk-Library, published on 17 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A stack-based buffer overflow vulnerability exists in the BlynkConsole.h runCommand functionality of Blynk -Library v1.0.1. A specially-crafted network request can lead to command execution. An attacker can send a network request to trigger this vulnerability.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2022-29496?

It affects 1 product.

Products include Blynk Blynk-Library.

How do I fix CVE-2022-29496?

No fix has been published for CVE-2022-29496 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-2022-29496 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-29496 exists.

Sources

Also known as GHSA-4v52-cfm2-5xvm.

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