Vulnerability · Published Dec 27, 2024 · Assigned by mitre
CVE-2024-56522
High 7.5
In plain English
A high-severity type confusion 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 0.6% (higher than 50% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.6%top 50.4% 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. unserializeTCPDFtag uses != (aka loose comparison) and does not use a constant-time function to compare TCPDF tag hashes.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | tcpdf | 6.6.2+dfsg1-1+deb12u1 | DSA-5933-1 |
| Debian:12 | tcpdf | 6.6.2+dfsg1-1+deb12u1 | DEBIAN-CVE-2024-56522 |
| Debian:13 | tcpdf | 6.8.0+dfsg-1 | DEBIAN-CVE-2024-56522 |
| Debian:14 | tcpdf | 6.8.0+dfsg-1 | DEBIAN-CVE-2024-56522 |
| Packagist | tecnickcom/tcpdf | 6.8.0 | GHSA-w95c-7994-ghpr |
| Ubuntu:22.04:LTS | tcpdf | no fix listed | UBUNTU-CVE-2024-56522 |
| Ubuntu:24.04:LTS | tcpdf | no fix listed | UBUNTU-CVE-2024-56522 |
Affected products (as reported)
Weakness: CWE-843 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N