CVE-2019-7663
First published: Sat Feb 09 2019(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/tiff | 4.2.0-1+deb11u5 4.2.0-1+deb11u6 4.5.0-6+deb12u2 4.5.0-6+deb12u1 4.5.1+git230720-5 | |
| libtiff | =4.0.10 | |
| Debian GNU/Linux | =8.0 | |
| Ubuntu Linux | =12.04 | |
| Ubuntu Linux | =14.04 | |
| Ubuntu Linux | =16.04 | |
| Ubuntu Linux | =18.04 | |
| Ubuntu Linux | =18.10 | |
| openSUSE | =15.0 | |
| Debian | =8.0 | |
| Ubuntu | =12.04 | |
| Ubuntu | =14.04 | |
| Ubuntu | =16.04 | |
| Ubuntu | =18.04 | |
| Ubuntu | =18.10 |
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Reference Links
- 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
- https://launchpad.net/bugs/cve/CVE-2019-7663
- https://security-tracker.debian.org/tracker/CVE-2019-7663
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-7663
- https://nvd.nist.gov/vuln/detail/CVE-2019-7663
- https://ubuntu.com/security/CVE-2019-7663
Frequently Asked Questions
What is the severity of CVE-2019-7663?
CVE-2019-7663 has been rated as a high severity vulnerability due to its potential to cause denial-of-service conditions.
How do I fix CVE-2019-7663?
To fix CVE-2019-7663, update LibTIFF to version 4.2.0-1+deb11u5 or later.
Which systems are affected by CVE-2019-7663?
CVE-2019-7663 affects various systems running LibTIFF version 4.0.10 and certain Debian and Ubuntu versions.
What types of attacks can exploit CVE-2019-7663?
CVE-2019-7663 can be exploited by remote attackers using crafted TIFF files to trigger a denial-of-service.
What components of LibTIFF are affected by CVE-2019-7663?
CVE-2019-7663 specifically affects the TIFFWriteDirectoryTagTransferfunction in libtiff/tif_dirwrite.c.
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