CVE-2020-36325 Memory corruption in n/a

High 7.5 Published 26 Apr 2021 Updated 4 Aug 2024

Out-of-bounds read in Jansson JSON parser can cause crashes or leak memory when handling malformed input.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2020-36325?

CVE-2020-36325 is a high-severity memory corruption vulnerability in n/a, published on 26 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in Jansson through 2.13.1. Due to a parsing error in json_loads, there's an out-of-bounds read-access bug. NOTE: the vendor reports that this only occurs when a programmer fails to follow the API specification

Weakness: CWE-125

Which versions are affected by CVE-2020-36325?

It affects 1 product.

Products include Jansson Project Jansson.

How do I fix CVE-2020-36325?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2020-36325 being exploited?

There is no known exploitation of CVE-2020-36325 in the wild and no public exploit code.

Sources

Also known as AZL-6490, GHSA-6p5j-2wf2-jfc6, ROOT-OS-DEBIAN-12-CVE-2020-36325.