High 8.8Published Sep 16, 2018

CVE-2018-17101An issue was discovered in LibTIFF 4.0.9.

Updated under an hour ago (Nov 2, 2026, 12:20 AM ET)

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It affects debian_linux and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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An issue was discovered in LibTIFF 4.0.9. There are two out-of-bounds writes in cpTags in tools/tiff2bw.c and tools/pal2rgb.c, which can cause a denial of service (application crash) or possibly have unspecified other impact via a crafted image file.

CVSS: 8.8 HIGH (v3.0, NVD)CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-787
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

debian debian_linux debian:debian_linux	8.0; 9.0	NVD
libtiff libtiff libtiff:libtiff	4.0.9	NVD
canonical ubuntu_linux canonical:ubuntu_linux	14.04; 16.04; 18.04; 18.10	NVD

References

References

http://bugzilla.maptools.org/show_bug.cgi?id=2807	issue-tracking, patch, third-party-advisory
http://www.securityfocus.com/bid/105370	third-party-advisory, vdb-entry
https://access.redhat.com/errata/RHSA-2019:2053
https://gitlab.com/libtiff/libtiff/merge_requests/33/diffs?commit_id=f1b94e8a3ba49febdd3361c0214a1d1149251577	patch, third-party-advisory
https://lists.debian.org/debian-lts-announce/2018/10/msg00019.html	mailing-list, third-party-advisory
https://usn.ubuntu.com/3864-1/	third-party-advisory
https://usn.ubuntu.com/3906-2/
https://www.debian.org/security/2018/dsa-4349	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.