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Full vulnerability report · 2022
CVE-2022-2520High confidence

A flaw was found in libtiff 4.4.0rc1

n/a · libtiff

6.5MediumCVSS 3.1
Recommended action
Within 7 days

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

Patch available
Optional official sources

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

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2022-34777

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
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
01

What, why and how

A flaw was found in libtiff 4.4.0rc1. There is a sysmalloc assertion fail in rotateImage() at tiffcrop.c:8621 that can cause program crash when reading a crafted input.

What

A flaw was found in libtiff 4.4.0rc1. There is a sysmalloc assertion fail in rotateImage() at tiffcrop.c:8621 that can cause program crash when reading a crafted input.

Why

The product does not correctly calculate the size to be used when allocating a buffer, which could lead to a buffer overflow.

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

A flaw was found in libtiff 4.4.0rc1. There is a sysmalloc assertion fail in rotateImage() at tiffcrop.c:8621 that can cause program crash when reading a crafted input.

Why

The product does not correctly calculate the size to be used when allocating a buffer, which could lead to a buffer overflow.

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.

02

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 → Incorrect Calculation of Buffer Size → 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-131 ↗

CWE-131: Incorrect Calculation of Buffer Size. The product does not correctly calculate the size to be used when allocating a buffer, which could lead to a buffer overflow.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Common Vulnerability Scoring System 3.1: 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-131Public exploit reference
A

Official authority intelligence

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

BSI · German · WID-SEC-W-2024-0794Dell ECS: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Dell ECS ausnutzen, um seine Privilegien zu erweitern, beliebigen Programmcode mit Administratorrechten auszuführen, Informationen offenzulegen, Dateien zu manipulieren, einen Cross-Site-Scripting-Angriff durchzuführen, Sicherheitsvorkehrungen zu umgehen oder einen Denial of Service Zustand herbeizuführen.

Official advisory
BSI · German · WID-SEC-W-2022-1250libTIFF: Mehrere Schwachstellen ermöglichen Denial of Service

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

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0218Multiples vulnérabilités dans les produits VMware

VERecord?id=CVE-2022-2058 Référence CVE CVE-2022-2255 https://www.cve.org/CVERecord?id=CVE-2022-2255 Référence CVE CVE-2022-22576 https://www.cve.org/CVERecord?id=CVE-2022-22576 Référence CVE CVE-2022-2309 https://www.cve.org/CVERecord?id=CVE-2022-2309 Référence CVE CVE-2022-23218 https://www.cve.org/CVERecord?id=CVE-2022-23218 Référence CVE CVE-2022-23219 https://www.cve.org/CVERecord?id=CVE-2022-23219 Référence CVE CVE-2022-23308 https://www.cve.org/CVERecord?id=CVE-2022-23308 Référence CVE CVE-2022-23990 https://www.cve.org/CVERecord?id=CVE-2022-23990 Référence CVE CVE-2022-2519 https://www.cve.org/CVERecord?id=CVE-2022-2519 Référence CVE CVE-2022-2520 https://www.cve.org/CVERecord?id=CVE-2022-2520 Référence CVE CVE-2022-2521 https://www.cve.org/CVERecord?id=CVE-2022-2521 Référence CVE CVE-2022-25236 https://www.cve.org/CVERecord?id=CVE-2022-25236 Référence CVE CVE-2022-26280 https://www.cve.org/CVERecord?id=CVE-2022-26280 Référence CVE CVE-2022-26488 https://www.cve.org/CVERecord?id=CVE-2022-26488 Référence CVE CVE-2022-27774 https://www.cve.org/CVERecord?id=CVE-2022-27774 Référence CVE CVE-2022-27775 https://www.cve.org/CVERecord?id=CVE-2022-27775 Référence CVE CVE-2022-27776 https://www.cve.org/CVERecord?id=CVE-2022-27776 Référence CVE CVE-2022-27781 https://www.cve.org/CVERecord?id=CVE

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0969Multiples vulnérabilités dans les produits VMware

ecord?id=CVE-2022-23806 Référence CVE CVE-2022-24070 https://www.cve.org/CVERecord?id=CVE-2022-24070 Référence CVE CVE-2022-24407 https://www.cve.org/CVERecord?id=CVE-2022-24407 Référence CVE CVE-2022-24599 https://www.cve.org/CVERecord?id=CVE-2022-24599 Référence CVE CVE-2022-24675 https://www.cve.org/CVERecord?id=CVE-2022-24675 Référence CVE CVE-2022-24921 https://www.cve.org/CVERecord?id=CVE-2022-24921 Référence CVE CVE-2022-2509 https://www.cve.org/CVERecord?id=CVE-2022-2509 Référence CVE CVE-2022-25147 https://www.cve.org/CVERecord?id=CVE-2022-25147 Référence CVE CVE-2022-2519 https://www.cve.org/CVERecord?id=CVE-2022-2519 Référence CVE CVE-2022-2520 https://www.cve.org/CVERecord?id=CVE-2022-2520 Référence CVE CVE-2022-2521 https://www.cve.org/CVERecord?id=CVE-2022-2521 Référence CVE CVE-2022-25308 https://www.cve.org/CVERecord?id=CVE-2022-25308 Référence CVE CVE-2022-25309 https://www.cve.org/CVERecord?id=CVE-2022-25309 Référence CVE CVE-2022-25310 https://www.cve.org/CVERecord?id=CVE-2022-25310 Référence CVE CVE-2022-25858 https://www.cve.org/CVERecord?id=CVE-2022-25858 Référence CVE CVE-2022-2598 https://www.cve.org/CVERecord?id=CVE-2022-2598 Référence CVE CVE-2022-26280 https://www.cve.org/CVERecord?id=CVE-2022-26280 Référence CVE CVE-2022-26488 https://www.cve.org/CVERecord?id=CVE-2

Official advisory
03

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
libtiff 4.4.0rc1
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.
04

Evidence and provenance

Published 31 Aug 2022 · Last source change 3 Aug 2024, 00:39 UTC · CWE-131 · Incorrect Calculation of Buffer Size

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 2026-08-14
European sourceENISA EUVD · EUVD-2022-34777
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCNA
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2022-34777↗Public exploit 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.
Free version - for non-commercial use only.CVE-2022-2520 · cve.blacktree.nl