VDB-294719 · CVE-2023-6386 · Nessus 253404

GitLab Community Edition/Enterprise Edition up to 16.6.6/16.7.4/16.8.1 allocation of resources

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.
6.7	$0-$5k	0.00

Summaryinfo

A vulnerability was found in GitLab Community Edition and Enterprise Edition up to 16.6.6/16.7.4/16.8.1. It has been classified as critical. The impacted element is an unknown function. The manipulation leads to allocation of resources. This vulnerability is traded as CVE-2023-6386. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in GitLab Community Edition and Enterprise Edition up to 16.6.6/16.7.4/16.8.1 and classified as critical. This issue affects an unknown code block. The manipulation with an unknown input leads to a allocation of resources vulnerability. Using CWE to declare the problem leads to CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. Impacted is availability. The summary by CVE is:

A denial of service vulnerability was identified in GitLab CE/EE, affecting all versions from 15.11 prior to 16.6.7, 16.7 prior to 16.7.5 and 16.8 prior to 16.8.2 which allows an attacker to spike the GitLab instance resource usage resulting in service degradation.

The weakness was shared by anonymizer. It is possible to read the advisory at gitlab.com. The identification of this vulnerability is CVE-2023-6386 since 11/29/2023. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 253404 (Linux Distros Unpatched Vulnerability : CVE-2023-6386), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 16.6.7, 16.7.5 or 16.8.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (253404). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Bug Tracking Software

Vendor

GitLab

Name

Version

License

open-source

Website

Vendor: https://gitlab.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 6.5
CNA Vector (GitLab): 🔍

CVSSv2info

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

Exploitinginfo

Class: Allocation of resources
CWE: CWE-770 / CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Nessus ID: 253404
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2023-6386

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Community Edition/Enterprise Edition 16.6.7/16.7.5/16.8.2

Timelineinfo

11/29/2023 🔍
02/05/2025 +434 days 🔍
02/05/2025 +0 days 🔍
08/24/2025 +200 days 🔍

Sourcesinfo

Vendor: gitlab.com

Advisory: gitlab.com
Researcher: anonymizer
Status: Confirmed

CVE: CVE-2023-6386 (🔍)
GCVE (CVE): GCVE-0-2023-6386
GCVE (VulDB): GCVE-100-294719

Entryinfo

Created: 02/05/2025 10:58
Updated: 08/24/2025 04:06
Changes: 02/05/2025 10:58 (64), 08/05/2025 23:09 (12), 08/24/2025 04:06 (2)
Complete: 🔍
Cache ID: 216::103