PT-2024-36830 · Libcurl+2 · Libcurl+2

CVE-2024-56521 · Published 2024-12-27 · Updated 2025-02-18

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions TCPDF versions prior to 6.8.0

Description An issue was discovered in TCPDF. If libcurl is used, CURLOPT SSL VERIFYHOST and CURLOPT SSL VERIFYPEER are set unsafely.

Recommendations For versions prior to 6.8.0, update to version 6.8.0 or later to resolve the issue. As a temporary workaround, consider configuring CURLOPT SSL VERIFYHOST and CURLOPT SSL VERIFYPEER safely until a patch is applied.

Exploit

Fix

Improper Certificate Validation

Weakness Enumeration

CWE-295

Related Identifiers

CVE-2024-56521

GHSA-9MGX-552F-59P6

MGASA-2025-0059

Affected Products

Debian

Tcpdf

Libcurl

References · 23

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56521.json · Exploit
• https://github.com/tecnickcom/TCPDF/compare/6.7.8...6.8.0 · Patch
• https://osv.dev/vulnerability/CVE-2024-56521 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-9mgx-552f-59p6 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2024-56521 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2024-56521 · Security Note
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/ZX3ABLKKEVGN4M4BBUJFPBNWW5SHP7J3 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-56521 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2024-56521 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2025-0059.html · Security Note
• https://osv.dev/vulnerability/MGASA-2025-0059 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-56521 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-56521 · Vendor Advisory
• https://github.com/tecnickcom/TCPDF · Note
• https://github.com/tecnickcom/TCPDF/commit/aab43ab0a824e956276141a28a24c7c0be20f554 · Note