CVE-2020-14224 Memory corruption in HCL Notes

Critical 9.8 Published Updated

A stack buffer overflow in HCL Notes allows remote attackers to execute arbitrary code or crash the application via crafted MIME messages.

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-2020-14224?

CVE-2020-14224 is a critical memory corruption vulnerability in HCL Notes, published on 18 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the MIME message handling of the HCL Notes v9 client could potentially be exploited by an unauthenticated attacker resulting in a stack buffer overflow. This could allow a remote attacker to crash the Notes application or inject code into the system which would execute with the privileges of the currently logged-in user.

Weakness: CWE-787

Which versions are affected by CVE-2020-14224?

It affects 1 product.

Products include Hcltech Notes.

How do I fix CVE-2020-14224?

No fix has been published for CVE-2020-14224 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-2020-14224 being exploited?

There is no known exploitation of CVE-2020-14224 in the wild and no public exploit code.

Sources

Also known as GHSA-43c2-x3q5-72p4.

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