CVE-2018-17000: Null Pointer Dereference
First published: Thu Sep 13 2018(Updated: )
A NULL pointer dereference in the function _TIFFmemcmp at tif_unix.c (called from TIFFWriteDirectoryTagTransferfunction) in LibTIFF 4.0.9 allows an attacker to cause a denial-of-service through a crafted tiff file. This vulnerability can be triggered by the executable tiffcp.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/tiff | <=4.0.9-6<=4.0.8-2 | 4.0.8-2+deb9u5 4.0.10-4 |
| IBM Cognos Analytics | <=12.0.0-12.0.3 | |
| IBM Cognos Analytics | <=11.2.0-11.2.4 FP4 | |
| 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 | =4.0.9 | |
| Debian | =8.0 | |
| 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=2811
- https://security-tracker.debian.org/tracker/CVE-2018-17000
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17000
- https://security-tracker.debian.org/tracker/CVE-2018-12900
- https://security-tracker.debian.org/tracker/CVE-2018-19210
- https://security-tracker.debian.org/tracker/CVE-2019-6128
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=908778
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00041.html
- http://www.securityfocus.com/bid/105342
- https://lists.debian.org/debian-lts-announce/2019/02/msg00026.html
- https://usn.ubuntu.com/3906-1/
- https://www.debian.org/security/2020/dsa-4670
- https://launchpad.net/bugs/cve/CVE-2018-17000
- http://bugzilla.maptools.org/show_bug.cgi?id=2833
- https://gitlab.com/libtiff/libtiff/commit/802d3cbf3043be5dce5317e140ccb1c17a6a2d39
- https://nvd.nist.gov/vuln/detail/CVE-2018-17000
- https://ubuntu.com/security/CVE-2018-17000
- https://www.ibm.com/support/pages/node/7177223 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2018-17000?
CVE-2018-17000 is classified as a denial-of-service vulnerability.
How do I fix CVE-2018-17000?
To fix CVE-2018-17000, upgrade to LibTIFF version 4.0.10 or any higher version available.
What does CVE-2018-17000 affect?
CVE-2018-17000 affects LibTIFF versions up to 4.0.9, specifically impacting TIFF file processing.
Can CVE-2018-17000 be exploited remotely?
Yes, CVE-2018-17000 can be exploited remotely through crafted TIFF files.
What software is vulnerable to CVE-2018-17000?
LibTIFF versions 4.0.9 and lower, as well as certain versions of IBM Cognos Analytics, are vulnerable to CVE-2018-17000.
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