CVE-2021-3881 Out-of-bounds Read in bfabiszewski/libmobi

High 7.1 Published 15 Oct 2021 Updated 3 Aug 2024

An out-of-bounds read in libmobi allows attackers to cause denial of service or disclose sensitive memory contents.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2021-3881?

CVE-2021-3881 is a high-severity memory corruption vulnerability in bfabiszewski/libmobi, published on 15 Oct 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

libmobi is vulnerable to Out-of-bounds Read

Weakness: CWE-125

Which versions are affected by CVE-2021-3881?

It affects 1 product.

Products include Libmobi Project Libmobi.

How do I fix CVE-2021-3881?

No fix has been published for CVE-2021-3881 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-2021-3881 being exploited?

There is no known exploitation of CVE-2021-3881 in the wild and no public exploit code.

Sources

Also known as GHSA-wp4m-4w7q-mqpj.