Samba AD DC resource consumption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

A vulnerability was found in Samba (File Transfer Software) (version unknown). It has been classified as problematic. Affected is an unknown function of the component AD DC. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. CVE summarizes:

MaxQueryDuration not honoured in Samba AD DC LDAP

The weakness was published 08/24/2022. The advisory is shared for download at bugzilla.redhat.com. This vulnerability is traded as CVE-2021-3670 since 07/30/2021. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

Applying the patch 1d5b155619bc532c46932965b215bd73a920e56f is able to eliminate this problem. The bugfix is ready for download at gitlab.com.

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
ATT&CK: T1499

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 1d5b155619bc532c46932965b215bd73a920e56f

Timelineinfo

07/30/2021 🔍
08/24/2022 +390 days 🔍
08/24/2022 +0 days 🔍
09/25/2022 +32 days 🔍

Sourcesinfo

Product: samba.org

Advisory: 1d5b155619bc532c46932965b215bd73a920e56f
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-3670 (🔍)

Entryinfo

Created: 08/24/2022 09:11
Updated: 09/25/2022 09:11
Changes: 08/24/2022 09:11 (41), 09/25/2022 09:10 (1), 09/25/2022 09:11 (11)
Complete: 🔍

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