Description

An Invalid Address dereference was discovered in TIFFWriteDirectoryTagTransferfunction in libtiff/tif_dirwrite.c in LibTIFF 4.0.10, affecting the cpSeparateBufToContigBuf function in tiffcp.c. Remote attackers could leverage this vulnerability to cause a denial-of-service via a crafted tiff file. This is different from CVE-2018-12900.

References

http://bugzilla.maptools.org/show_bug.cgi?id=2833

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00041.html

https://gitlab.com/libtiff/libtiff/commit/802d3cbf3043be5dce5317e140ccb1c17a6a2d39

https://lists.debian.org/debian-lts-announce/2019/02/msg00026.html

https://security.gentoo.org/glsa/202003-25

https://usn.ubuntu.com/3906-1/

https://usn.ubuntu.com/3906-2/

https://www.debian.org/security/2020/dsa-4670

Details

Risk Information

CVSS v2

CVSS v3