CVE-2021-32773 Information

Description

Racket is a general-purpose programming language and an ecosystem for language-oriented programming. In versions prior to 8.2 code evaluated using the Racket sandbox could cause system modules to incorrectly use attacker-created modules instead of their intended dependencies. This could allow system functions to be controlled by the attacker giving access to facilities intended to be restricted. This problem is fixed in Racket version 8.2. A workaround is available depending on system settings. For systems that provide arbitrary Racket evaluation external sandboxing such as containers limit the impact of the problem. For multi-user evaluation systems such as the handin-server system it is not possible to work around this problem and upgrading is required.

CVSS Vector

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

Reference

https://github.com/racket/racket/security/advisories/GHSA-cgrw-p7p7-937c https://github.com/racket/racket/commit/6ca4ffeca1e5877d44f835760ad89f18488d97e1

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5