CVE-2023-26966 Memory corruption in n/a
A buffer overflow in libtiff allows attackers to execute arbitrary code or cause denial of service via a crafted TIFF file.
- 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-2023-26966?
CVE-2023-26966 is a medium-severity memory corruption vulnerability in Libtiff Libtiff, published on 29 Jun 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
libtiff 4.5.0 is vulnerable to Buffer Overflow in uv_encode() when libtiff reads a corrupted little-endian TIFF file and specifies the output to be big-endian.
Weakness: CWE-120
Which versions are affected by CVE-2023-26966?
It affects 1 product.
Products include Libtiff Libtiff.
How do I fix CVE-2023-26966?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-26966 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-26966 exists.
Other vulnerabilities in Libtiff Libtiff
Sources
Also known as AZL-27303, BELL-CVE-2023-26966, DEBIAN-CVE-2023-26966, GHSA-wg7m-6ff7-7pcj, UBUNTU-CVE-2023-26966.