CVE-2019-7663

Name: CVE-2019-7663
Creator: NVD / NIST
Published: 2019-02-09T16:29:00.313+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.37%

Last modified Jun 17, 2026

CVE-2019-7663 is a vulnerability of currently unknown severity. 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. EPSS estimates a 3.37% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

3.37%

87.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Libtiff	Libtiff	4.0.10
Debian	Debian Linux	8.0
Canonical	Ubuntu Linux	12.04
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	18.10
Opensuse	Leap	15.0

References

http://bugzilla.maptools.org/show_bug.cgi?id=2833Exploit, Issue Tracking, Patch, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00041.htmlMailing List, Third Party Advisory
https://gitlab.com/libtiff/libtiff/commit/802d3cbf3043be5dce5317e140ccb1c17a6a2d39Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/02/msg00026.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/202003-25
https://usn.ubuntu.com/3906-1/Third Party Advisory
https://usn.ubuntu.com/3906-2/Third Party Advisory
https://www.debian.org/security/2020/dsa-4670
http://bugzilla.maptools.org/show_bug.cgi?id=2833Exploit, Issue Tracking, Patch, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00041.htmlMailing List, Third Party Advisory
https://gitlab.com/libtiff/libtiff/commit/802d3cbf3043be5dce5317e140ccb1c17a6a2d39Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/02/msg00026.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/202003-25
https://usn.ubuntu.com/3906-1/Third Party Advisory
https://usn.ubuntu.com/3906-2/Third Party Advisory
https://www.debian.org/security/2020/dsa-4670

Timeline

Published: Feb 9, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-7663?

How severe is CVE-2019-7663?

Severity scoring for CVE-2019-7663 is pending analysis. The EPSS model estimates a 3.37% probability of exploitation in the next 30 days.

How do I fix CVE-2019-7663?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-7663?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST