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CVE-2018-17000

24
FAUCET Score

CVE-2018-17000 is a NULL pointer dereference vulnerability in LibTIFF 4.0.9, specifically within the _TIFFmemcmp function, which can be triggered by a crafted TIFF file and affects various Canonical and Debian Linux distributions. This medium-severity vulnerability (CVSS 6.5) can be exploited remotely with low attack complexity, requiring user interaction, and primarily leads to a denial-of-service condition. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
4.0.9CPE matchmatch criteria
cpe:2.3:a:libtiff:libtiff:4.0.9:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.26%
Probability of exploitation in next 30 days
EPSS Percentile
87.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0326 is in the 94th percentile among its peer group of 26,234 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2018-17000Low

libtiff: NULL pointer dereference in function _TIFFmemcmp at tif_unix.c

Sep 13, 2018

References

bugzilla.maptools.org / show_bug.cgi
ExploitIssue TrackingThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2019-04/msg00041.html
lists.debian.org / debian-lts-announce/2019/02/msg00026.html
Third Party Advisory
usn.ubuntu.com / 3906-1
Third Party Advisory
debian.org / security/2020/dsa-4670
securityfocus.com / bid/105342
Third Party AdvisoryVDB Entry