Vulnerability · Published Dec 27, 2024 · Assigned by mitre
CVE-2024-56521
Critical 9.8
In plain English
A critical-severity improper certificate validation in tcpdf from tecnick. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.8%top 43.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An issue was discovered in TCPDF before 6.8.0. If libcurl is used, CURLOPT_SSL_VERIFYHOST and CURLOPT_SSL_VERIFYPEER are set unsafely.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | tcpdf | no fix listed | DEBIAN-CVE-2024-56521 |
| Debian:13 | tcpdf | 6.8.0+dfsg-1 | DEBIAN-CVE-2024-56521 |
| Debian:14 | tcpdf | 6.8.0+dfsg-1 | DEBIAN-CVE-2024-56521 |
| Packagist | tecnickcom/tcpdf | 6.8.0 | GHSA-9mgx-552f-59p6 |
| Ubuntu:22.04:LTS | tcpdf | no fix listed | UBUNTU-CVE-2024-56521 |
| Ubuntu:24.04:LTS | tcpdf | no fix listed | UBUNTU-CVE-2024-56521 |
Affected products (as reported)
Weakness: CWE-295 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H