CVE-2022-24834 Heap overflow issue with the Lua cjson library used by Redis

2023-07-1314:35:41

CWE-122

CWE-680

GitHub_M

www.cve.org

cve-2022-24834

heap overflow

redis

lua

cjson

remote code execution

disk persistence

lua scripting

version 2.6+

authenticated users

authorized users

heap corruption

fixed versions

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.1 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

70.8%

JSON

Redis is an in-memory database that persists on disk. A specially crafted Lua script executing in Redis can trigger a heap overflow in the cjson library, and result with heap corruption and potentially remote code execution. The problem exists in all versions of Redis with Lua scripting support, starting from 2.6, and affects only authenticated and authorized users. The problem is fixed in versions 7.0.12, 6.2.13, and 6.0.20.

CNA Affected

[
  {
    "vendor": "redis",
    "product": "redis",
    "versions": [
      {
        "version": ">= 7.0.0, < 7.0.12",
        "status": "affected"
      },
      {
        "version": ">= 6.2.0, < 6.2.13",
        "status": "affected"
      },
      {
        "version": ">= 6.0.0, < 6.0.20",
        "status": "affected"
      }
    ]
  }
]