CVE-2023-52079 Conversion of property names to strings can trigger infinite recursion

2023-12-2815:20:20

CWE-674

CWE-754

GitHub_M

www.cve.org

cve-2023

msgpackr

infinite recursion

v1.10.1

fix

structured cloning

6.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

13.3%

JSON

msgpackr is a fast MessagePack NodeJS/JavaScript implementation. Prior to 1.10.1, when decoding user supplied MessagePack messages, users can trigger stuck threads by crafting messages that keep the decoder stuck in a loop. The fix is available in v1.10.1.
Exploits seem to require structured cloning, replacing the 0x70 extension with your own (that throws an error or does something other than recursive referencing) should mitigate the issue.

CNA Affected

[
  {
    "vendor": "kriszyp",
    "product": "msgpackr",
    "versions": [
      {
        "version": "< 1.10.1",
        "status": "affected"
      }
    ]
  }
]