CVE-2019-25048 Memory corruption in n/a

High 7.1 Published 1 Jul 2021 Updated 5 Aug 2024

A heap-based buffer over-read in LibreSSL allows attackers to cause denial of service or disclose sensitive memory contents.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2019-25048?

CVE-2019-25048 is a high-severity memory corruption vulnerability in n/a, published on 1 Jul 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

LibreSSL 2.9.1 through 3.2.1 has a heap-based buffer over-read in do_print_ex (called from asn1_item_print_ctx and ASN1_item_print).

Weakness: CWE-125

Which versions are affected by CVE-2019-25048?

It affects 1 product.

Products include Openbsd Libressl.

How do I fix CVE-2019-25048?

No fix has been published for CVE-2019-25048 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-2019-25048 being exploited?

There is no known exploitation of CVE-2019-25048 in the wild and no public exploit code.

Sources

Also known as GHSA-f2vj-m3mq-wc4p.