CVE-2023-0803: Buffer Overflow
LibTIFF 4.4.0 has an out-of-bounds write in tiffcrop in tools/tiffcrop.c:3516, allowing attackers to cause a denial-of-service via a crafted tiff file. For users that compile libtiff from sources, the fix is available with commit 33aee127.
Other sources
LibTIFF is vulnerable to a denial of service, caused by a heap-based buffer overflow when processing TIFF files in extractContigSamplesShifted16bits in tiffcrop.c. By persuading a victim to open a specially-crafted TIFF file, a remote attacker could overflow a buffer and cause a denial of service.
— IBM
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is CVE-2023-0803?
CVE-2023-0803 is a vulnerability in LibTIFF version 4.4.0 that allows attackers to cause a denial-of-service via a crafted tiff file.
How can this vulnerability be exploited?
Attackers can exploit CVE-2023-0803 by using a crafted tiff file to trigger an out-of-bounds write in the tiffcrop tool of LibTIFF.
What is the severity of CVE-2023-0803?
CVE-2023-0803 has a severity level of medium.
How do I fix CVE-2023-0803?
Users can fix CVE-2023-0803 by updating to a fixed version of LibTIFF or by applying the fix available with commit 33aee127.
Where can I find more information about CVE-2023-0803?
You can find more information about CVE-2023-0803 at the following references: [Link 1](https://gitlab.com/libtiff/libtiff/-/commit/33aee1275d9d1384791d2206776eb8152d397f00), [Link 2](https://gitlab.com/libtiff/libtiff/-/issues/501), [Link 3](https://security-tracker.debian.org/tracker/CVE-2023-0803)