01 Record

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

UnratedPUBLISHEDCNA: mitre

CNA base scoreUnratedNo CNA CVSS vector

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02 Description

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

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 3.25% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 88.2% of scored records. A rank, not a probability.
NVD base score: 6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2018-09-13 16:00Z8 YR AGO

Last updated

2024-08-05 10:39Z2 YR AGO

Reserved

2018-09-13

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-476NULL Pointer DereferenceBase
CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass

Data version

5.1

Document digest

4f92ff1d96b9977029a1cbdf0d5b538c1e10a8002a7a9c541ba0b1b77d24b153

05 Affected products

VendorProductVersionsPlatforms

canonicalubuntu_linuxNot specified—

debiandebian_linuxNot specified—

libtifflibtiffNot specified—

redhatenterprise_linuxNot specified—

06 References

bugzilla.maptools.orghttp://bugzilla.maptools.org/show_bug.cgi?id=2811x_refsource_MISC
www.securityfocus.com105342http://www.securityfocus.com/bid/105342vdb-entryx_refsource_BID
usn.ubuntu.comUSN-3906-1https://usn.ubuntu.com/3906-1/vendor-advisoryx_refsource_UBUNTU
lists.debian.org[debian-lts-announce] 20190218 [SECURITY] [DLA 1680-1] tiff security updatehttps://lists.debian.org/debian-lts-announce/2019/02/msg00026.htmlmailing-listx_refsource_MLIST
lists.opensuse.orgopenSUSE-SU-2019:1161http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00041.htmlvendor-advisoryx_refsource_SUSE
www.debian.orgDSA-4670https://www.debian.org/security/2020/dsa-4670vendor-advisoryx_refsource_DEBIAN

07 Fixed in

Debian 12

tiff
Fixed in 4.0.10-4

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

tiff
Fixed in 4.0.10-4

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

tiff
Fixed in 4.0.10-4

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 14.04 LTS

tiff
Fixed in 4.0.3-7ubuntu0.11

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

tiff
Fixed in 4.0.6-1ubuntu0.6

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

tiff
Fixed in 4.0.9-5ubuntu0.2

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.