CVE-2022-45493 Memory corruption in n/a

High 7.8 Published 3 Feb 2023 Updated 3 Aug 2024

A buffer overflow in the sheredom JSON parsing library allows attackers to execute arbitrary code and escalate privileges.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-45493?

CVE-2022-45493 is a high-severity memory corruption vulnerability in n/a, published on 3 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Buffer overflow vulnerability in function json_parse_key in sheredom json.h before commit 0825301a07cbf51653882bf2b153cc81fdadf41 (November 14, 2022) allows attackers to code arbitrary code and gain escalated privileges.

Weakness: CWE-787

Which versions are affected by CVE-2022-45493?

It affects 1 product.

Products include Json.h Project Json.h.

How do I fix CVE-2022-45493?

No fix has been published for CVE-2022-45493 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-2022-45493 being exploited?

There is no known exploitation of CVE-2022-45493 in the wild and no public exploit code.

Sources

Also known as AZL-74517, GHSA-r2mm-2f4c-6243.