Samba Heimdal null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Samba. This affects an unknown function of the component Heimdal. Such manipulation leads to null pointer dereference. This vulnerability is documented as CVE-2021-3671. There is not any exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in Samba (File Transfer Software) (affected version unknown). It has been rated as problematic. Affected by this issue is an unknown functionality of the component Heimdal. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability.

The weakness was released 10/13/2021. The advisory is available at bugzilla.redhat.com. This vulnerability is handled as CVE-2021-3671 since 07/30/2021. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 211098 (Fedora 37 : heimdal (2022-2c77cee4b5)), which helps to determine the existence of the flaw in a target environment.

Applying the patch 04171147948d0a3636bc6374181926f0fb2ec83a is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at Tenable (211098). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

License

Website

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 211098
Nessus Name: Fedora 37 : heimdal (2022-2c77cee4b5)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 04171147948d0a3636bc6374181926f0fb2ec83a

Timelineinfo

07/30/2021 🔍
10/13/2021 +75 days 🔍
10/13/2021 +0 days 🔍
11/17/2024 +1131 days 🔍

Sourcesinfo

Product: samba.org

Advisory: 04171147948d0a3636bc6374181926f0fb2ec83a
Status: Confirmed

CVE: CVE-2021-3671 (🔍)
GCVE (CVE): GCVE-0-2021-3671
GCVE (VulDB): GCVE-100-184346

Entryinfo

Created: 10/13/2021 08:09
Updated: 11/17/2024 07:13
Changes: 10/13/2021 08:09 (39), 10/20/2021 08:33 (2), 11/17/2024 07:13 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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