VDB-190468 · CVE-2021-45774 · GCVE-0-2021-45774

GNU InetUtils 2.2.16-cf091 commands.c help null pointer dereference

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.
3.4	$0-$5k	0.00

Summaryinfo

A vulnerability described as problematic has been identified in GNU InetUtils 2.2.16-cf091. This vulnerability affects the function help of the file inetutils/telnet/commands.c. Executing a manipulation can lead to null pointer dereference. This vulnerability appears as CVE-2021-45774. There is no available exploit.

Detailsinfo

A vulnerability classified as problematic was found in GNU InetUtils 2.2.16-cf091. This vulnerability affects the function help of the file inetutils/telnet/commands.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability.

The weakness was presented 01/15/2022. The advisory is shared for download at lists.gnu.org. This vulnerability was named CVE-2021-45774 since 12/27/2021. There are known technical details, but no exploit is available.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

InetUtils

Version

2.2.16-cf091

License

open-source

Website

Vendor: https://www.gnu.org/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/27/2021 🔍
01/15/2022 +19 days 🔍
01/15/2022 +0 days 🔍
01/19/2022 +4 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: lists.gnu.org
Status: Not defined

CVE: CVE-2021-45774 (🔍)
GCVE (CVE): GCVE-0-2021-45774
GCVE (VulDB): GCVE-100-190468

Entryinfo

Created: 01/15/2022 06:58
Updated: 01/19/2022 06:10
Changes: 01/15/2022 06:58 (38), 01/19/2022 06:10 (1)
Complete: 🔍
Cache ID: 216::103