NULL pointer dereference in Libtiff
CVE-2018-17000
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.
EPSS: 0.033 (87.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
Affected products
- Libtiff — versions 4.0.9
- Canonical Ubuntu_linux — versions 14.04, 16.04, 18.04
- Debian Debian_linux — versions 8.0
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)
- cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- cve@mitre.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- cve@mitre.org (mailing-list, x_refsource_MLIST, Third Party Advisory)
- cve@mitre.org (vendor-advisory, x_refsource_SUSE)
- cve@mitre.org (vendor-advisory, x_refsource_DEBIAN)
Frequently asked questions
- What is CVE-2018-17000?
- CVE-2018-17000 is a medium-severity vulnerability in Libtiff, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2018-09-13.
- How severe is CVE-2018-17000?
- Medium severity. CVSS v3 base score is 6.5 out of 10.