CVE-2018-5784: Remote attackers could leverage this vulnerability to cause a denial of service via a crafted tif file

Distribution release	Source package	Vendor state	Fixed version	Evidence
Alpine v3.23v3.23 · main	`tiff`	Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.	`4.0.9-r2`	Alpine Security Database ↗Source updated 3 Oct 2026
Alpine v3.22v3.22 · main	`tiff`	Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.	`4.0.9-r2`	Alpine Security Database ↗Source updated 3 Oct 2026
Alpine v3.21v3.21 · main	`tiff`	Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.	`4.0.9-r2`	Alpine Security Database ↗Source updated 3 Oct 2026
Debian trixietrixie · source	`tiff`	Vendor fix publishedDebian records a fixed source-package version for this release.	`4.0.9-4`	Debian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · source	`tiff`	Vendor fix publishedDebian records a fixed source-package version for this release.	`4.0.9-4`	Debian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · source	`tiff`	Vendor fix publishedDebian records a fixed source-package version for this release.	`4.0.9-4`	Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · source	`tiff`	Vendor fix publishedDebian records a fixed source-package version for this release.	`4.0.9-4`	Debian Security Tracker ↗Source updated 5 Oct 2026

Recommended actionWithin 7 days

Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Patch available

What, why and how

In LibTIFF 4.0.9, there is an uncontrolled resource consumption in the TIFFSetDirectory function of tif_dir.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted tif file. This occurs because the declared number of directory entries is not validated against the actual number of directory entries.

What

Why

The product does not properly control the allocation and maintenance of a limited resource.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may disrupt the affected service.

What

Why

The product does not properly control the allocation and maintenance of a limited resource.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may disrupt the affected service.

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path: a network path → Uncontrolled Resource Consumption → disrupt the affected service
Attack surface: Network
Privileges required: None: unauthenticated exploitation is possible
User interaction: Required interaction required
Attack complexity: Low: no specialised conditions are recorded
Security boundary: Unchanged: impact remains within the vulnerable component's security authority
Weakness ? CWE means Common Weakness Enumeration: a standard category for the underlying weakness.: CWE-400 ↗
CWE-400: Uncontrolled Resource Consumption. The product does not properly control the allocation and maintenance of a limited resource.
CVSS vector ? CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Common Vulnerability Scoring System 3.0: the compact vector below is decoded into plain language.
AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land: No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.

NetworkUnauthenticatedDenial of serviceCWE-400Public exploit reference

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2018-17551Official EUVD mapping

0 linked advisory records.

Official EUVD record ↗

BSI · German · WID-SEC-2025-2524libTIFF: Schwachstelle ermöglicht Denial of Service

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in libTIFF ausnutzen, um einen Denial of Service Angriff durchzuführen.

Official advisory ↗

CERT-FR · French · CERTFR-2024-AVI-1103Multiples vulnérabilités dans les produits IBM

d?id=CVE-2018-15209 Référence CVE CVE-2018-16335 https://www.cve.org/CVERecord?id=CVE-2018-16335 Référence CVE CVE-2018-17000 https://www.cve.org/CVERecord?id=CVE-2018-17000 Référence CVE CVE-2018-17100 https://www.cve.org/CVERecord?id=CVE-2018-17100 Référence CVE CVE-2018-17101 https://www.cve.org/CVERecord?id=CVE-2018-17101 Référence CVE CVE-2018-18508 https://www.cve.org/CVERecord?id=CVE-2018-18508 Référence CVE CVE-2018-19210 https://www.cve.org/CVERecord?id=CVE-2018-19210 Référence CVE CVE-2018-20676 https://www.cve.org/CVERecord?id=CVE-2018-20676 Référence CVE CVE-2018-20677 https://www.cve.org/CVERecord?id=CVE-2018-20677 Référence CVE CVE-2018-5784 https://www.cve.org/CVERecord?id=CVE-2018-5784 Référence CVE CVE-2018-7456 https://www.cve.org/CVERecord?id=CVE-2018-7456 Référence CVE CVE-2019-10255 https://www.cve.org/CVERecord?id=CVE-2019-10255 Référence CVE CVE-2019-11358 https://www.cve.org/CVERecord?id=CVE-2019-11358 Référence CVE CVE-2019-11719 https://www.cve.org/CVERecord?id=CVE-2019-11719 Référence CVE CVE-2019-11727 https://www.cve.org/CVERecord?id=CVE-2019-11727 Référence CVE CVE-2019-11729 https://www.cve.org/CVERecord?id=CVE-2019-11729 Référence CVE CVE-2019-11745 https://www.cve.org/CVERecord?id=CVE-2019-11745 Référence CVE CVE-2019-11756 https://www.cve.org/CVERecord?id=CVE

Official advisory ↗

JVN iPedia · Japanese · JVNDB-2018-001445LibTIFF におけるリソース管理に関する脆弱性

LibTIFF には、リソース管理に関する脆弱性が存在します。

Official advisory ↗

Patch and workaround

Operational remediation based on structured source evidence.

Status ? Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.: Patch available
Affected: n/a
Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action: Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround: No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.

Evidence and provenance

Published 19 Jan 2018 · Last source change 5 Aug 2024, 05:47 UTC · CWE-400 · Uncontrolled Resource Consumption

CVE recordCVE.org · 5.1

CVSS sourceNIST NVD

EPSS source

The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.

FIRST · tracked since 2026-09-01

European sourceENISA EUVD · EUVD-2018-17551

Product sourceUnavailable

Remediation sourceCVE/CNA references

CWE sourceNIST NVD

NVD statusNVD modified after enrichment

Missing structured fields: affected product. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates ↗

1 Sep 2026, 02:42 UTC
ENISA EUVD mappingEUVD-2018-17551 was added to the official ENISA EUVD mapping for this CVE.
Before
not recorded
After
{"euvdId":"EUVD-2018-17551"}
ENISA EUVD ↗
5 Aug 2024, 05:47 UTC
Vendor guidanceAuthoritative vendor guidance changed: added patch: gitlab.com/473851d211cf8805a161820337ca74cc9615d6ef; added remediation: gitlab.com/473851d211cf8805a161820337ca74cc9615d6ef; removed vendor advisory: debian.org/dsa-4349; removed vendor advisory: usn.ubuntu.com/3602-1; 1 further removals.
Before
vendor advisory: debian.org/dsa-4349 · vendor advisory: usn.ubuntu.com/3602-1 · vendor advisory: usn.ubuntu.com/3606-1
After
patch: gitlab.com/473851d211cf8805a161820337ca74cc9615d6ef · remediation: gitlab.com/473851d211cf8805a161820337ca74cc9615d6ef
gitlab.com ↗
5 Aug 2024, 05:47 UTC
Affected versionsThe structured affected or fixed version information changed.
Before
n/a · Fixed: No fixed version is explicitly recorded in the structured CVE data.
After
n/a · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
CNA ↗
5 Aug 2024, 05:47 UTC
Remediation statusRemediation status changed from Awaiting fix to Patch available.
Before
Awaiting fix
After
Patch available
gitlab.com ↗
5 Aug 2024, 05:47 UTC
Public exploit evidencePublic exploit evidence changed from No public exploit to Public exploit reference.
Before
No public exploit
After
Public exploit reference
bugzilla.maptools.org ↗
5 Aug 2024, 05:47 UTC
SeveritySeverity changed from Unknown to Medium.
Before
Unknown
After
Medium
NIST NVD ↗
5 Aug 2024, 05:47 UTC
CVSS scoreCVSS score changed from not recorded to 6.5 (CVSS 3.0 · NIST NVD · CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H).
Before
not recorded
After
6.5 (CVSS 3.0 · NIST NVD · CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
NIST NVD ↗
5 Aug 2024, 05:47 UTC
Catalogue recordCVE added to the BlackTree catalogue.
CNA ↗

2018-01-19CVE published

2024-08-05Fixed release or patch reference recorded

ENISA EUVD · EUVD-2018-17551↗Patch or update reference↗CVE authority or vendor reference↗Public exploit reference↗Official CVE record (CNA and ADP data)↗NVD record↗

Technical terms and abbreviations used in this report

CVE: Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS: Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS: Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE: Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA: CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP: Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD: National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT: A computer security incident response team that publishes warnings or coordinates incident response.
PoC: Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF: Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL: Living off the land: abuse of legitimate tools or system functions during an attack.

Remote attackers could leverage this vulnerability to cause a denial of service via a crafted tif file

Published severity in operational context

Evidence used

Compensating controls

Verification

Release-specific package status

National CERT insights
?
CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

ENISA European Vulnerability Database

EUVD-2018-17551

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

What changed after publication