CVE-2022-43664 Use after free in Ichitaro
A use-after-free flaw in Ichitaro Word Processor allows attackers to execute arbitrary code via a malicious document.
- 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-2022-43664?
CVE-2022-43664 is a high-severity use after free vulnerability in Ichitaro, published on 5 Apr 2023. 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
A use-after-free vulnerability exists within the way Ichitaro Word Processor 2022, version 1.0.1.57600, processes protected documents. A specially crafted document can trigger reuse of freed memory, which can lead to further memory corruption and potentially result in arbitrary code execution. An attacker can provide a malicious document to trigger this vulnerability.
Weakness: CWE-416
Which versions are affected by CVE-2022-43664?
It affects 1 product.
Products include Justsystems Ichitaro 2022.
How do I fix CVE-2022-43664?
No fix has been published for CVE-2022-43664 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2022-43664 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-43664 exists.
Other vulnerabilities in Ichitaro
Sources
Also known as GHSA-h2hj-3cjv-jc39.