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CVE-2024-56522

Date: December 26, 2024

An issue was discovered in TCPDF before 6.8.0. unserializeTCPDFtag uses != (aka loose comparison) and does not use a constant-time function to compare TCPDF tag hashes.

Severity Score

Related Resources (8)

https://github.com/tecnickcom/TCPDF/commit/d54b97cec33f4f1a5ad81119a82085cad93cec89
https://tcpdf.org
https://github.com/tecnickcom/TCPDF
https://security-tracker.debian.org/tracker/CVE-2024-56522
https://github.com/tecnickcom/TCPDF/compare/6.7.8...6.8.0
https://www.php.net/manual/en/types.comparisons.php
https://nvd.nist.gov/vuln/detail/CVE-2024-56522
https://www.mend.io/vulnerability-database/CVE-2024-56522

Severity Score

Weakness Type (CWE)

Access of Resource Using Incompatible Type ('Type Confusion')

CWE-843

Incorrect Comparison

CWE-697

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

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