CVE-2019-20423 Integer overflow in n/a

High 7.5 Published Updated

An integer signedness error in the Lustre file system allows remote attackers to cause a buffer overflow and system panic via crafted packets.

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-2019-20423?

CVE-2019-20423 is a high-severity vulnerability in n/a, published on 27 Jan 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In the Lustre file system before 2.12.3, the ptlrpc module has a buffer overflow and panic due to the lack of validation for specific fields of packets sent by a client. The function target_handle_connect() mishandles a certain size value when a client connects to a server, because of an integer signedness error.

Weakness: CWE-120

Which versions are affected by CVE-2019-20423?

It affects 1 product.

Products include Lustre Lustre.

How do I fix CVE-2019-20423?

No fix has been published for CVE-2019-20423 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-20423 being exploited?

There is no known exploitation of CVE-2019-20423 in the wild and no public exploit code.

Sources

Also known as GHSA-vm3p-xfv5-m8r3, UBUNTU-CVE-2019-20423.

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