PHP ReDoS question

[Adrian Bunk <bunk@debian.org>]

Hi,

could someone with more knowledge about PHP look at the following:

https://security-tracker.debian.org/tracker/CVE-2024-22640
https://github.com/zunak/CVE-2024-22640
https://security-tracker.debian.org/tracker/CVE-2024-22641
https://github.com/zunak/CVE-2024-22641

Changing the PoCs to
  require_once('/usr/share/php/tcpdf/tcpdf.php');
I cannot reproduce the issue in bookworm or jessie,
it just seems to work fine already without the fix.

Am I doing something stupid here, or is there some reason why we might 
not be affected by these CVEs?

Thanks
Adrian