CVE-2024-27354

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.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:phpseclib:phpseclib:*:*:*:*:*:*:*:*
cpe:2.3:a:phpseclib:phpseclib:*:*:*:*:*:*:*:*
cpe:2.3:a:phpseclib:phpseclib:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

History

15 Sep 2025, 17:58

Type Values Removed Values Added
First Time Debian debian Linux
Debian
CPE cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

15 Sep 2025, 17:13

Type Values Removed Values Added
References () https://gist.github.com/katzj/ee72f3c2a00590812b2ea3c0c8890e0b - () https://gist.github.com/katzj/ee72f3c2a00590812b2ea3c0c8890e0b - Third Party Advisory
References () https://github.com/phpseclib/phpseclib/blob/master/phpseclib/Math/PrimeField.php#L49 - () https://github.com/phpseclib/phpseclib/blob/master/phpseclib/Math/PrimeField.php#L49 - Product
References () https://lists.debian.org/debian-lts-announce/2024/03/msg00002.html - () https://lists.debian.org/debian-lts-announce/2024/03/msg00002.html - Mailing List, Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2024/03/msg00003.html - () https://lists.debian.org/debian-lts-announce/2024/03/msg00003.html - Mailing List, Third Party Advisory
First Time Phpseclib
Phpseclib phpseclib
CPE cpe:2.3:a:phpseclib:phpseclib:*:*:*:*:*:*:*:*

Information

Published : 2024-03-01 23:15

Updated : 2025-09-15 17:58


NVD link : CVE-2024-27354

Mitre link : CVE-2024-27354

CVE.ORG link : CVE-2024-27354


JSON object : View

Products Affected

phpseclib

  • phpseclib

debian

  • debian_linux
CWE
CWE-400

Uncontrolled Resource Consumption