CVE-2023-35126 Memory corruption in Ichitaro 2023
A malicious document can trigger an out-of-bounds write in Ichitaro, allowing attackers to execute arbitrary code on the victim's system.
- 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-2023-35126?
CVE-2023-35126 is a high-severity memory corruption vulnerability in Ichitaro 2023, published on 19 Oct 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
An out-of-bounds write vulnerability exists within the parsers for both the "DocumentViewStyles" and "DocumentEditStyles" streams of Ichitaro 2023 1.0.1.59372 when processing types 0x0000-0x0009 of a style record with the type 0x2008. A specially crafted document can cause memory corruption, which can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.
Which versions are affected by CVE-2023-35126?
It affects 19 products.
Products include Justsystems Easy Postcard Max, Justsystems Ichitaro 2021, Justsystems Ichitaro 2022, Justsystems Ichitaro 2023, Justsystems Ichitaro Government 10, Justsystems Ichitaro Government 8 and 13 more.
How do I fix CVE-2023-35126?
No fix has been published for CVE-2023-35126 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-2023-35126 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-35126 exists.
Other vulnerabilities in Ichitaro 2023
Sources
Also known as GHSA-c36p-pqfp-h5j2.