CVE-2022-1623

Name of the Vulnerable Software and Affected Versions LibTIFF master branch

Description The issue is related to an out-of-bounds read in the LZWDecode function in libtiff/tif lzw.c:624, which can be exploited by attackers to cause a denial-of-service via a crafted tiff file. This can be done remotely.

Recommendations For users that compile libtiff from sources, the fix is available with commit b4e79bfa. As a temporary workaround, consider disabling the LZWDecode function until a patch is available. Restrict access to the libtiff/tif lzw.c module to minimize the risk of exploitation. Avoid using crafted tiff files in the affected LZWDecode function until the issue is resolved.