CVE-2024-27308 Mio's tokens for named pipes may be delivered after deregistration

2024-03-0619:27:28

CWE-416

CWE-672

GitHub_M

github.com

mio

tokens

named pipes

deregistration

windows

use-after-free

tokio

vulnerable

fixed

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

6.7

Confidence

Low

SSVC

Exploitation

poc

Automatable

yes

Technical Impact

partial

JSON

Mio is a Metal I/O library for Rust. When using named pipes on Windows, mio will under some circumstances return invalid tokens that correspond to named pipes that have already been deregistered from the mio registry. The impact of this vulnerability depends on how mio is used. For some applications, invalid tokens may be ignored or cause a warning or a crash. On the other hand, for applications that store pointers in the tokens, this vulnerability may result in a use-after-free. For users of Tokio, this vulnerability is serious and can result in a use-after-free in Tokio. The vulnerability is Windows-specific, and can only happen if you are using named pipes. Other IO resources are not affected. This vulnerability has been fixed in mio v0.8.11. All versions of mio between v0.7.2 and v0.8.10 are vulnerable. Tokio is vulnerable when you are using a vulnerable version of mio AND you are using at least Tokio v1.30.0. Versions of Tokio prior to v1.30.0 will ignore invalid tokens, so they are not vulnerable. Vulnerable libraries that use mio can work around this issue by detecting and ignoring invalid tokens.

ADP Affected

[
  {
    "cpes": [
      "cpe:2.3:a:mio_project:mio:*:*:*:*:*:rust:*:*"
    ],
    "vendor": "mio_project",
    "product": "mio",
    "versions": [
      {
        "status": "affected",
        "version": "0.7.2",
        "lessThan": "0.8.11",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  }
]