CVE-2022-43467 Open Babel has out-of-bounds write in PQS coord_file parser

Critical 9.8 Published Updated

An out-of-bounds write in Open Babel allows arbitrary code execution via a malicious PQS file.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2022-43467?

CVE-2022-43467 is a critical memory corruption vulnerability in Open Babel, published on 21 Jul 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An out-of-bounds write vulnerability exists in the PQS format coord_file functionality of Open Babel 3.1.1 and master commit 530dbfa3. A specially crafted malformed file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.

Weakness: CWE-787, CWE-119

Which versions are affected by CVE-2022-43467?

3 open source packages ship an affected version, including openbabel. It affects 1 product.

PackageAffectedFixed in
openbabel PyPIAll versions3.2.0
openbabel PyPIAll versions3.2.0
openbabel PyPIAll versions3.2.0

Products include Openbabel Open Babel.

How do I fix CVE-2022-43467?

Upgrade openbabel to 3.2.0 or later.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2022-43467 being exploited?

There is no known exploitation of CVE-2022-43467 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2022-43467, GHSA-f29h-2h58-48r7, PYSEC-2026-2779, UBUNTU-CVE-2022-43467.

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