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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.033 (87.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 87.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.033 · newest: 0.033 · change: -0.000
Affected products
- Libtiff — versions 4.0.9
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- Debian Linux — versions 8.0
Weakness classification (CWE)
References
- bugzilla.maptools.org/show_bug.cgi (Exploit, Third Party Advisory, Issue Tracking)
- www.securityfocus.com/bid/105342 (VDB Entry, Third Party Advisory, vdb-entry)
- usn.ubuntu.com/3906-1/ (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2019/02/msg00026.html (mailing-list, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00041.html (vendor-advisory)
- www.debian.org/security/2020/dsa-4670 (vendor-advisory)
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.