CVE-2023-6337 Vault May be Vulnerable to a Denial of Service Through Memory Exhaustion When Handling Large HTTP Requests

2023-12-0821:12:31

CWE-770

HashiCorp

www.cve.org

cve-2023-6337

hashicorp vault

denial of service

memory exhaustion

http requests

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.0005 Low

EPSS

Percentile

17.0%

JSON

HashiCorp Vault and Vault Enterprise 1.12.0 and newer are vulnerable to a denial of service through memory exhaustion of the host when handling large unauthenticated and authenticated HTTP requests from a client. Vault will attempt to map the request to memory, resulting in the exhaustion of available memory on the host, which may cause Vault to crash.

Fixed in Vault 1.15.4, 1.14.8, 1.13.12.

CNA Affected

[
  {
    "vendor": "HashiCorp",
    "product": "Vault",
    "platforms": [
      "Windows",
      "MacOS",
      "Linux",
      "x86",
      "ARM",
      "64 bit",
      "32 bit"
    ],
    "repo": "https://github.com/hashicorp/vault",
    "versions": [
      {
        "status": "affected",
        "version": "1.12.0",
        "lessThan": "1.15.4",
        "changes": [
          {
            "at": "1.14.8",
            "status": "unaffected"
          },
          {
            "at": "1.13.2",
            "status": "unaffected"
          }
        ],
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "HashiCorp",
    "product": "Vault Enterprise",
    "platforms": [
      "Windows",
      "MacOS",
      "Linux",
      "x86",
      "ARM",
      "64 bit",
      "32 bit"
    ],
    "versions": [
      {
        "status": "affected",
        "version": "1.12.0",
        "lessThan": "1.15.4",
        "changes": [
          {
            "at": "1.14.8",
            "status": "unaffected"
          },
          {
            "at": "1.13.2",
            "status": "unaffected"
          }
        ],
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]