Detections
Analytics
CVE-2024-27354
high
Description
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
https://lists.debian.org/debian-lts-announce/2024/03/msg00003.html
https://lists.debian.org/debian-lts-announce/2024/03/msg00002.html
https://github.com/phpseclib/phpseclib/blob/master/phpseclib/Math/PrimeField.php#L49
https://gist.github.com/katzj/ee72f3c2a00590812b2ea3c0c8890e0b