VDB-228081 · CVE-2023-2156 · GCVE-0-2023-2156

Linux Kernel IPv6 RPL Protocol denial of service

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.
7.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Linux Kernel. It has been rated as problematic. The impacted element is an unknown function of the component IPv6 RPL Protocol Handler. Performing a manipulation results in denial of service. This vulnerability is identified as CVE-2023-2156. The attack can be initiated remotely. There is not any exploit available. It is advisable to use the suggested workaround.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel (Operating System) (version unknown). This affects an unknown function of the component IPv6 RPL Protocol Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability.

The weakness was released 05/05/2023. The advisory is shared at zerodayinitiative.com. This vulnerability is uniquely identified as CVE-2023-2156 since 04/18/2023. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/28/2023). MITRE ATT&CK project uses the attack technique T1499 for this issue.

The best possible mitigation is suggested to be Workaround.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

License

open-source

Website

Vendor: https://www.kernel.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.5
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Denial of service
CWE: 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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Workaround
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/18/2023 🔍
05/05/2023 +17 days 🔍
05/05/2023 +0 days 🔍
05/28/2023 +23 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: zerodayinitiative.com
Status: Confirmed

CVE: CVE-2023-2156 (🔍)
GCVE (CVE): GCVE-0-2023-2156
GCVE (VulDB): GCVE-100-228081

Entryinfo

Created: 05/05/2023 08:23
Updated: 05/28/2023 09:25
Changes: 05/05/2023 08:23 (38), 05/28/2023 09:21 (1), 05/28/2023 09:25 (10)
Complete: 🔍
Cache ID: 216::103