CVE-2024-27354

2024-03-0100:00:00

mitre

github.com

phpseclib

denial of service

malformed certificate

extremely large prime

cve-2024-27354

AI Score

6.7

Confidence

High

EPSS

0.001

Percentile

41.1%

SSVC

Exploitation

none

Automatable

yes

Technical Impact

partial

JSON

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.

ADP Affected

[
  {
    "cpes": [
      "cpe:2.3:a:phpseclib:1x:*:*:*:*:*:*:*:*"
    ],
    "vendor": "phpseclib",
    "product": "1x",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "1.0.23",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "cpes": [
      "cpe:2.3:a:phpseclib:2x:*:*:*:*:*:*:*:*"
    ],
    "vendor": "phpseclib",
    "product": "2x",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "2.0.47",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "cpes": [
      "cpe:2.3:a:phpseclib:3x:*:*:*:*:*:*:*:*"
    ],
    "vendor": "phpseclib",
    "product": "3x",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "3.0.36",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  }
]