CVE-2024-37904 Denial of service from maliciously configured Git repository in Minder

2024-06-1817:07:02

CWE-400

GitHub_M

www.cve.org

minder

git provider

vulnerability

denial of service

github repository

clone options

in-memory filesystem

dos attack

memory exhaustion

minder server

git url

size limit

commit 7979b43

upgrade

CVSS3

5.7

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

Percentile

15.5%

JSON

Minder is an open source Software Supply Chain Security Platform. Minder’s Git provider is vulnerable to a denial of service from a maliciously configured GitHub repository. The Git provider clones users repositories using the github.com/go-git/go-git/v5 library on lines L55-L89. The Git provider does the following on the lines L56-L62. First, it sets the CloneOptions, specifying the url, the depth etc. It then validates the options. It then sets up an in-memory filesystem, to which it clones and Finally, it clones the repository. The (g *Git) Clone() method is vulnerable to a DoS attack: A Minder user can instruct Minder to clone a large repository which will exhaust memory and crash the Minder server. The root cause of this vulnerability is a combination of the following conditions: 1. Users can control the Git URL which Minder clones, 2. Minder does not enforce a size limit to the repository, 3. Minder clones the entire repository into memory. This issue has been addressed in commit 7979b43 which has been included in release version v0.0.52. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CNA Affected

[
  {
    "vendor": "stacklok",
    "product": "minder",
    "versions": [
      {
        "version": "< 0.0.52",
        "status": "affected"
      }
    ]
  }
]