Samba up to 4.13.13/4.14.9/4.15.1 AD DC RPC Server use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Samba up to 4.13.13/4.14.9/4.15.1. This issue affects some unknown processing of the component AD DC RPC Server. Such manipulation leads to use after free. This vulnerability is documented as CVE-2021-3738. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Samba up to 4.13.13/4.14.9/4.15.1 (File Transfer Software) and classified as critical. Affected by this issue is an unknown part of the component AD DC RPC Server. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability.

The weakness was released 11/10/2021. The advisory is shared for download at samba.org. This vulnerability is handled as CVE-2021-3738. There are neither technical details nor an exploit publicly available.

Upgrading to version 4.13.14, 4.14.10 or 4.15.2 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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: Use after free
CWE: CWE-416 / CWE-119
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Samba 4.13.14/4.14.10/4.15.2

Timelineinfo

08/26/2021 🔍
11/10/2021 +76 days 🔍
11/10/2021 +0 days 🔍
11/12/2021 +2 days 🔍

Sourcesinfo

Product: samba.org

Advisory: samba.org
Status: Confirmed

CVE: CVE-2021-3738 (🔍)
GCVE (CVE): GCVE-0-2021-3738
GCVE (VulDB): GCVE-100-186476

Entryinfo

Created: 11/10/2021 15:06
Updated: 11/12/2021 13:11
Changes: 11/10/2021 15:06 (38), 11/12/2021 13:11 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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