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CVE-2024-27354

Published: Mar 1, 2024

Modified: Apr 22, 2025

PUBLISHED

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.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

https://github.com/phpseclib/phpseclib/blob/master/phpseclib/Math/PrimeField.php#L49

https://gist.github.com/katzj/ee72f3c2a00590812b2ea3c0c8890e0b

[debian-lts-announce] 20240305 [SECURITY] [DLA 3749-1] phpseclib security update

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[debian-lts-announce] 20240305 [SECURITY] [DLA 3750-1] php-phpseclib security update

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