CVE-2024-27354: phpseclib a large prime can cause a denial of service
(updated )
An issue was discovered in phpseclib 1.x before 1.0.23, 2.x before 2.0.47, and 3.x before 3.0.36. An attacker can construct a malformed certificate containing an extremely large prime to cause a denial of service (CPU consumption for an isPrime primality check). NOTE: this issue was introduced when attempting to fix CVE-2023-27560.
References
- gist.github.com/katzj/ee72f3c2a00590812b2ea3c0c8890e0b
- github.com/advisories/GHSA-hg35-mp25-qf6h
- github.com/phpseclib/phpseclib
- github.com/phpseclib/phpseclib/blob/master/phpseclib/Math/PrimeField.php
- github.com/phpseclib/phpseclib/commit/2870c8fab3f132d2ed40a66c97a36fe5ab625698
- github.com/phpseclib/phpseclib/commit/ad5dbdf2129f5e0fb644637770b7f33de8ca8575
- github.com/phpseclib/phpseclib/commit/c55b75199ec8d12cec6eadf6da99da4a3712fe56
- nvd.nist.gov/vuln/detail/CVE-2024-27354
Code Behaviors & Features
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