CVE-2022-4121 Null dereference in libetpan
A null pointer dereference in libetpan allows remote attackers to cause a denial of service via crafted IMAP responses.
- 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
- Available
What is CVE-2022-4121?
CVE-2022-4121 is a medium-severity vulnerability in libetpan, published on 17 Jan 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
In libetpan a null pointer dereference in mailimap_mailbox_data_status_free in low-level/imap/mailimap_types.c was found that could lead to a remote denial of service or other potential consequences.
Weakness: CWE-476
Which versions are affected by CVE-2022-4121?
It affects 1 product.
Products include Libetpan Project Libetpan.
How do I fix CVE-2022-4121?
Apply the vendor's patch.
Is CVE-2022-4121 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-4121 exists.
Other vulnerabilities in libetpan
Sources
Also known as DEBIAN-CVE-2022-4121, DLA-3261-1, DLA-4256-1, GHSA-73jp-p4j5-5wmx, MGASA-2022-0470, UBUNTU-CVE-2022-4121 and 1 more.