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No exploitation reportedFix available

CVE-2019-7663

No exploitation reported by the sources we read.

  • Published2019-02-09

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2019-02-0916:29CVE publishedNVD

Versions per branch

NVD
Libtiff
BranchAffectedFixed in
4.0= 4.0.10no fix published
Canonical ubuntu linux
BranchAffectedFixed in
12.4= 12.04no fix published
14.4= 14.04no fix published
16.4= 16.04no fix published
18.4= 18.04no fix published
18.10= 18.10no fix published
Debian debian linux
BranchAffectedFixed in
8.0= 8.0no fix published

1 more product in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • gdalUbuntu:Pro:16.04:LTSall versions · no fixed version listed
  • gdalUbuntu:Pro:14.04:LTSall versions · no fixed version listed
  • libtiffMageia:6all versions · fixed in 4.0.10-1.git20190219.1.mga6
  • qtimageformats-opensource-srcUbuntu:24.04:LTSall versions · no fixed version listed
  • qtimageformats-opensource-srcUbuntu:22.04:LTSall versions · no fixed version listed
  • qtimageformats-opensource-srcUbuntu:20.04:LTSall versions · no fixed version listed
  • qtimageformats-opensource-srcUbuntu:18.04:LTSall versions · no fixed version listed
  • qtwebengine-opensource-srcUbuntu:Pro:26.04:LTSall versions · no fixed version listed

28 more package ranges on OSV.dev

Vendor advisories

  • CVE-2019-7663 Red Hat Product Security

    libtiff: integer overflow in libtiff/tif_dirwrite.c resulting in an invalid pointer dereference

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published
2019-02-09
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-26x4-fg42-26fj

Frequently asked questions

What is 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.

Is CVE-2019-7663 actively exploited?

Active exploitation of CVE-2019-7663 has not been confirmed. Its EPSS score was 3.4% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-7663?

CVE-2019-7663 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

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