Lua 5.4.0 ldebug.c integer underflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Lua 5.4.0. This issue affects some unknown processing of the file ldebug.c. Executing a manipulation can lead to integer underflow. This vulnerability appears as CVE-2020-24370. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability has been found in Lua 5.4.0 and classified as critical. This vulnerability affects an unknown part of the file ldebug.c. The manipulation with an unknown input leads to a integer underflow vulnerability. The CWE definition for the vulnerability is CWE-191. The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

ldebug.c in Lua 5.4.0 allows a negation overflow and segmentation fault in getlocal and setlocal, as demonstrated by getlocal(3,2^31).

The weakness was presented 08/17/2020. This vulnerability was named CVE-2020-24370 since 08/17/2020. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 212643 (EulerOS 2.0 SP12 : lua (EulerOS-SA-2024-2954)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (212643). See VDB-159989 and VDB-159987 for similar entries. Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Integer underflow
CWE: CWE-191 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 212643
Nessus Name: EulerOS 2.0 SP12 : lua (EulerOS-SA-2024-2954)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/17/2020 🔍
08/17/2020 +0 days 🔍
08/18/2020 +1 days 🔍
12/12/2024 +1577 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-2020-24370 (🔍)
GCVE (CVE): GCVE-0-2020-24370
GCVE (VulDB): GCVE-100-159988
See also: 🔍

Entryinfo

Created: 08/18/2020 06:53
Updated: 12/12/2024 10:00
Changes: 08/18/2020 06:53 (35), 08/18/2020 06:58 (17), 09/09/2024 16:00 (16), 12/12/2024 10:00 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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