VDB-315217 · CVE-2024-25176 · ID 1149

LuaJIT up to 2.1 lj_strfmt_num.c lj_strfmt_wfnum stack-based overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in LuaJIT up to 2.1. It has been rated as critical. Affected by this issue is the function lj_strfmt_wfnum of the file lj_strfmt_num.c. This manipulation causes stack-based overflow. This vulnerability is tracked as CVE-2024-25176. No exploit exists. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability classified as critical was found in LuaJIT up to 2.1. Affected by this vulnerability is the function lj_strfmt_wfnum of the file lj_strfmt_num.c. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

LuaJIT through 2.1 has a stack-buffer-overflow in lj_strfmt_wfnum in lj_strfmt_num.c.

The advisory is shared at github.com. This vulnerability is known as CVE-2024-25176 since 02/07/2024. The exploitation appears to be easy. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 242025 (Fedora 42 : luajit (2025-b1082e9269)), which helps to determine the existence of the flaw in a target environment.

Applying the patch 343ce0edaf3906a62022936175b2f5410024cbfc is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the databases at Tenable (242025) and EUVD (EUVD-2024-22512). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

LuaJIT

Version

License

open-source

Website

Product: https://github.com/LuaJIT/LuaJIT/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 242025
Nessus Name: Fedora 42 : luajit (2025-b1082e9269)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 343ce0edaf3906a62022936175b2f5410024cbfc

Timelineinfo

02/07/2024 CVE reserved
07/07/2025 +515 days Advisory disclosed
07/07/2025 +0 days VulDB entry created
07/25/2025 +18 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 1149
Status: Confirmed

CVE: CVE-2024-25176 (🔒)
GCVE (CVE): GCVE-0-2024-25176
GCVE (VulDB): GCVE-100-315217
EUVD: 🔒

Entryinfo

Created: 07/07/2025 20:28
Updated: 07/25/2025 02:42
Changes: 07/07/2025 20:28 (58), 07/12/2025 17:59 (3), 07/24/2025 20:26 (1), 07/25/2025 02:42 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.