Skip to content

Lua library commands may lead to stack overflow and potential RCE

High
madolson published GHSA-cjwh-fcpr-v5r7 Nov 11, 2024

Package

valkey-server

Affected versions

<= 7.2.6, 8.0.0

Patched versions

7.2.7, 8.0.1

Description

Impact

An authenticated user may use a specially crafted Lua script to trigger a stack buffer overflow in the bit library, which may potentially lead to remote code execution.

The problem exists in all versions of Valkey with Lua scripting.

Patches

The problem is fixed in Valkey 7.2.7 and Valkey 8.0.1.

Credit

The problem was reported by ankki-zsyang, Shenzhen Ankki Technologies Co.Ltd.

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Local
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE ID

CVE-2024-31449

Weaknesses

Credits