CVE-2023-34853 Memory corruption in n/a

High 7.8 Published Updated

Local attackers can hijack control flow and execute arbitrary code via a buffer overflow in Supermicro motherboard firmware.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-34853?

CVE-2023-34853 is a high-severity memory corruption vulnerability in n/a, published on 22 Aug 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Buffer Overflow vulnerability in Supermicro motherboard X12DPG-QR 1.4b allows local attackers to hijack control flow via manipulation of SmcSecurityEraseSetupVar variable.

Weakness: CWE-787

Which versions are affected by CVE-2023-34853?

It affects 271 products.

Products include Supermicro H11dsi-Nt Firmware, Supermicro H11dsi Firmware, Supermicro H11dst-B Firmware, Supermicro H11dsu-in Firmware, Supermicro H12dgo-6 Firmware, Supermicro H12dgq-Nt6 Firmware and 265 more.

How do I fix CVE-2023-34853?

No fix has been published for CVE-2023-34853 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-2023-34853 being exploited?

There is no known exploitation of CVE-2023-34853 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-hc5f-667v-8w5w.

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