NetHack up to 3.6.4 Configuration AUTOCOMPLETE buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability was found in NetHack up to 3.6.4. It has been classified as critical. The impacted element is an unknown function of the component Configuration Handler. This manipulation of the argument AUTOCOMPLETE as part of Configuration File causes buffer overflow. This vulnerability is tracked as CVE-2020-5211. The attack is restricted to local execution. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in NetHack up to 3.6.4. It has been declared as critical. Affected by this vulnerability is an unknown code block of the component Configuration Handler. The manipulation of the argument AUTOCOMPLETE as part of a Configuration File leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In NetHack before 3.6.5, an invalid extended command in value for the AUTOCOMPLETE configuration file option can cause a buffer overflow resulting in a crash or remote code execution/privilege escalation. This vulnerability affects systems that have NetHack installed suid/sgid and shared systems that allow users to upload their own configuration files. Users should upgrade to NetHack 3.6.5.

The weakness was disclosed 01/28/2020 (GitHub Repository). The advisory is shared at github.com. This vulnerability is known as CVE-2020-5211 since 01/02/2020. An attack has to be approached locally. The requirement for exploitation is a single authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

Upgrading to version 3.6.5 eliminates this vulnerability.

The entries VDB-149500, VDB-149499, VDB-149498 and VDB-149496 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.0

VulDB Base Score: 5.7
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.0
NVD Vector: 🔍

CNA Base Score: 5.0
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: NetHack 3.6.5

Timelineinfo

01/02/2020 🔍
01/28/2020 +26 days 🔍
01/29/2020 +1 days 🔍
03/27/2024 +1519 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-r788-4jf4-r9f7
Status: Not defined

CVE: CVE-2020-5211 (🔍)
GCVE (CVE): GCVE-0-2020-5211
GCVE (VulDB): GCVE-100-149497
See also: 🔍

Entryinfo

Created: 01/29/2020 06:52
Updated: 03/27/2024 10:59
Changes: 01/29/2020 06:52 (41), 01/29/2020 06:57 (11), 03/27/2024 10:53 (17), 03/27/2024 10:59 (18)
Complete: 🔍
Cache ID: 216::103

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

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