NULL pointer dereference in Libtiff
CVE-2018-19210
In LibTIFF 4.0.9, there is a NULL pointer dereference in the TIFFWriteDirectorySec function in tif_dirwrite.c that will lead to a denial of service attack, as demonstrated by tiffset.
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: 0.036 (89.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.036 · newest: 0.036 · 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
- www.securityfocus.com/bid/105932 (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, Mailing List, Third Party Advisory)
- bugzilla.maptools.org/show_bug.cgi (Exploit, Third Party Advisory, Issue Tracking)
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00041.html (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- seclists.org/bugtraq/2019/Nov/5 (mailing-list)
- packetstormsecurity.com/files/155095/Slackware-Security-Advisory-libtiff-Update…
- security.gentoo.org/glsa/202003-25 (vendor-advisory)
Frequently asked questions
- What is CVE-2018-19210?
- CVE-2018-19210 is a medium-severity vulnerability in Libtiff, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2018-11-12.
- How severe is CVE-2018-19210?
- Medium severity. CVSS v3 base score is 6.5 out of 10.