CVE-2023-27117 Memory corruption in n/a

High 7.8 Published Updated

A heap overflow in the WebAssembly binary toolkit allows attackers to execute arbitrary code or cause denial of service via crafted input.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2023-27117?

CVE-2023-27117 is a high-severity memory corruption vulnerability in n/a, published on 10 Mar 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

WebAssembly v1.0.29 was discovered to contain a heap overflow via the component component wabt::Node::operator.

Weakness: CWE-787

Which versions are affected by CVE-2023-27117?

1 open source package ship an affected version, including wabt. It affects 1 product.

PackageAffectedFixed in
wabt PyPIAll versions to 1.0.29None

Products include Webassembly Webassembly.

How do I fix CVE-2023-27117?

No fix has been published for CVE-2023-27117 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-2023-27117 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-27117 exists.

Sources

Also known as DEBIAN-CVE-2023-27117, GHSA-85v6-77qr-hmv2, PYSEC-2023-317, UBUNTU-CVE-2023-27117.

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