Name: CVE-2024-27354: Uncontrolled Resource Consumption
Creator: Rapid7
Published: 2024-03-01T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2024-27354, CWE-400, CVSS 7.5, EPSS 0.00601

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.

CVSS Details

CVSS 3.1 Base Score: 7.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Debian	—	Upgrade phpseclibUpgrade php-phpseclibUpgrade php-phpseclib3	Mar 7, 2024	Mar 1, 2024
Ubuntu	—	Upgrade php-seclib (Ubuntu Pro)Upgrade php-phpseclib3 (Ubuntu Pro)Upgrade php-seclibUpgrade php-phpseclib (Ubuntu Pro)	Apr 3, 2025	Mar 1, 2024

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CVSS Details

Covered by Rapid7

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