CVE-2023-22613 Memory corruption in n/a

High 8.8 Published Updated

Attackers can corrupt SMM memory via malformed pointers in InsydeH2O firmware, potentially enabling code execution and privilege escalation.

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-2023-22613?

CVE-2023-22613 is a high-severity memory corruption vulnerability in Insyde Insydeh2o, published on 11 Apr 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. It is possible to write to an attacker-controlled address. An attacker could invoke an SMI handler with a malformed pointer in RCX that overlaps SMRAM, resulting in SMM memory corruption.

Weakness: CWE-787

Which versions are affected by CVE-2023-22613?

It affects 1 product.

Products include Insyde Insydeh2o.

How do I fix CVE-2023-22613?

No fix has been published for CVE-2023-22613 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-2023-22613 being exploited?

There is no known exploitation of CVE-2023-22613 in the wild and no public exploit code.

All Insyde Insydeh2o vulnerabilities

Sources

Also known as GHSA-g2w9-pvr5-q6m3.

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