COVESA dlt-daemon up to 2.18.8 /shared/dlt_common.c buffer overflow

HistoryDiffrelatejsonxmlCTI

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.
6.8	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in COVESA dlt-daemon up to 2.18.8. This vulnerability affects unknown code of the file /shared/dlt_common.c. This manipulation causes buffer overflow. The identification of this vulnerability is CVE-2023-36321. There is no exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability classified as critical was found in COVESA dlt-daemon up to 2.18.8. Affected by this vulnerability is some unknown functionality of the file /shared/dlt_common.c. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Connected Vehicle Systems Alliance (COVESA) up to v2.18.8 wwas discovered to contain a buffer overflow via the component /shared/dlt_common.c.

The weakness was shared 10/18/2023 as 436. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2023-36321 since 06/21/2023. Technical details of the vulnerability are known, but there is no available exploit.

Applying the patch 8ac9a080bee25e67e49bd138d81c992ce7b6d899 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 EUVD (EUVD-2023-40289). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

COVESA

Name

dlt-daemon

Version

License

open-source

Website

Product: https://github.com/COVESA/dlt-daemon/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 8ac9a080bee25e67e49bd138d81c992ce7b6d899

Timelineinfo

06/21/2023 🔍
10/18/2023 +119 days 🔍
10/18/2023 +0 days 🔍
01/13/2026 +818 days 🔍

Sourcesinfo

Product: github.com

Advisory: 436
Status: Confirmed

CVE: CVE-2023-36321 (🔍)
GCVE (CVE): GCVE-0-2023-36321
GCVE (VulDB): GCVE-100-242839
EUVD: 🔍

Entryinfo

Created: 10/18/2023 07:50
Updated: 01/13/2026 16:37
Changes: 10/18/2023 07:50 (42), 11/11/2023 00:16 (11), 06/28/2024 12:03 (15), 08/02/2024 06:24 (12), 01/13/2026 16:37 (1)
Complete: 🔍
Cache ID: 216::103