CVE-2021-42774 Memory corruption in n/a

Critical 9.8 Published 12 Nov 2021 Updated 4 Aug 2024

Remote unauthenticated attackers can exploit a buffer overflow in Broadcom HBA Manager to execute arbitrary code if not in Strictly Local Management mode.

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-2021-42774?

CVE-2021-42774 is a critical memory corruption vulnerability in n/a, published on 12 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Broadcom Emulex HBA Manager/One Command Manager versions before 11.4.425.0 and 12.8.542.31, if not installed in Strictly Local Management mode, have a buffer overflow vulnerability in the remote firmware download feature that could allow remote unauthenticated users to perform various attacks. In non-secure mode, the user is unauthenticated.

Weakness: CWE-120

Which versions are affected by CVE-2021-42774?

It affects 1 product.

Products include Broadcom Emulex Hba Manager.

How do I fix CVE-2021-42774?

No fix has been published for CVE-2021-42774 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-2021-42774 being exploited?

There is no known exploitation of CVE-2021-42774 in the wild and no public exploit code.

Sources

Also known as GHSA-mr9f-f2w7-mmmf.