CVE-2024-55884 Memory corruption in n/a

Critical 9.0 Published Updated

Heap-based out-of-bounds writes in Mullvad VPN client exception handling may allow code execution, though exploitation is non-trivial.

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-2024-55884?

CVE-2024-55884 is a critical memory corruption vulnerability in n/a, published on 11 Dec 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In the Mullvad VPN client 2024.6 (Desktop), 2024.8 (iOS), and 2024.8-beta1 (Android), the exception-handling alternate stack can be exhausted, leading to heap-based out-of-bounds writes in enable() in exception_logging/unix.rs, aka MLLVD-CR-24-01. NOTE: achieving code execution is considered non-trivial.

Weakness: CWE-787

Which versions are affected by CVE-2024-55884?

How do I fix CVE-2024-55884?

No fix has been published for CVE-2024-55884 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-2024-55884 being exploited?

There is no known exploitation of CVE-2024-55884 in the wild and no public exploit code.

Sources

Also known as GHSA-cvp4-7hm2-fv9m.

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