OSV-2023-345 Heap-buffer-overflow in mg_mqtt_parse

Not scored Published

A heap-buffer-overflow in the Mongoose MQTT parser allows remote attackers to cause denial of service or potentially execute code via crafted packets.

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

What is OSV-2023-345?

OSV-2023-345 is a memory corruption vulnerability in mongoose, published on 26 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=58319

Crash type: Heap-buffer-overflow READ 1
Crash state:
mg_mqtt_parse
fuzz.c

Which versions are affected by OSV-2023-345?

1 open source package ship an affected version, including mongoose.

PackageAffectedFixed in
mongoose OSS-FuzzAll versionsNone

How do I fix OSV-2023-345?

No fix has been published for OSV-2023-345 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 OSV-2023-345 being exploited?

There is no known exploitation of OSV-2023-345 in the wild and no public exploit code.

Sources

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