CVE-2023-33220 Stack Buffer Overflow when checking some attributes during retrofit

Critical 9.1 Published Updated

A stack buffer overflow in IDEMIA biometric scanner firmware allows remote attackers to execute arbitrary code during attribute validation.

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-2023-33220?

CVE-2023-33220 is a critical memory corruption vulnerability in IDEMIA MorphoWave Compact/XP, published on 15 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

During the retrofit validation process, the firmware doesn't properly check the boundaries while copying some attributes to check. This allows a stack-based buffer overflow that could lead to a potential Remote Code Execution on the targeted device

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2023-33220?

It affects 8 products.

Products include Idemia Morphowave Compact Firmware, Idemia Morphowave Sp Firmware, Idemia Morphowave Xp Firmware, Idemia Sigma Extreme Firmware, Idemia Sigma Lite\+ Firmware, Idemia Sigma Lite Firmware and 2 more.

How do I fix CVE-2023-33220?

No fix has been published for CVE-2023-33220 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-2023-33220 being exploited?

There is no known exploitation of CVE-2023-33220 in the wild and no public exploit code.

Sources

Also known as GHSA-5qcg-f6q9-5q2r.

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