CVE-2019-7663

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.

CVSS v3.0 NVD

6.5 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v2.0 NVD

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS

3.36% chance of exploitation in the next 30 days, 89th percentile

Published

2019-02-09

Updated

2024-08-04

Proof-of-concept exploits (1)

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

Security advisories

• 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://usn.ubuntu.com/3906-1
• https://usn.ubuntu.com/3906-2

References

• CVE Record
• NVD entry