CVE-2023-32541 Use after free in Hancom Office 2020
A use-after-free in Hancom Office allows attackers to execute arbitrary code by tricking users into opening a malicious .doc file.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-32541?
CVE-2023-32541 is a high-severity use after free vulnerability in Hancom Office 2020, published on 26 Sep 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A use-after-free vulnerability exists in the footerr functionality of Hancom Office 2020 HWord 11.0.0.7520. A specially crafted .doc file can lead to a use-after-free. An attacker can trick a user into opening a malformed file to trigger this vulnerability.
Weakness: CWE-416
Which versions are affected by CVE-2023-32541?
It affects 1 product.
Products include Hancom Hancom Office 2020.
How do I fix CVE-2023-32541?
No fix has been published for CVE-2023-32541 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-2023-32541 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-32541 exists.
Other vulnerabilities in Hancom Office 2020
Sources
Also known as GHSA-f332-grfr-h53c.