CVE-2021-39295 Denial of service in n/a

High 7.5 Published Updated

Attackers can cause a denial of service on OpenBMC systems by sending crafted IPMI messages via the netipmid interface.

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-2021-39295?

CVE-2021-39295 is a high-severity denial of service vulnerability in n/a, published on 15 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In OpenBMC 2.9, crafted IPMI messages allow an attacker to cause a denial of service to the BMC via the netipmid (IPMI lan+) interface.

Weakness: CWE-400

Which versions are affected by CVE-2021-39295?

It affects 1 product.

Products include Openbmc-Project Openbmc.

How do I fix CVE-2021-39295?

No fix has been published for CVE-2021-39295 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2021-39295 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-39295 exists.

Sources

Also known as GHSA-8gg3-qvw7-qmgm.

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