TCPrewrite 4.4.3 plugins/dlt_plugins.c tcpedit_dlt_cleanup denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in TCPrewrite 4.4.3. The impacted element is the function tcpedit_dlt_cleanup of the file plugins/dlt_plugins.c. Executing a manipulation can lead to denial of service. This vulnerability is tracked as CVE-2023-27783. The attack can be launched remotely. No exploit exists. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in TCPrewrite 4.4.3. It has been declared as problematic. This vulnerability affects the function tcpedit_dlt_cleanup of the file plugins/dlt_plugins.c. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

An issue found in TCPreplay tcprewrite v.4.4.3 allows a remote attacker to cause a denial of service via the tcpedit_dlt_cleanup function at plugins/dlt_plugins.c.

The weakness was disclosed 03/16/2023 as 780. The advisory is shared for download at github.com. This vulnerability was named CVE-2023-27783 since 03/05/2023. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1499.

The vulnerability scanner Nessus provides a plugin with the ID 214723 (Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS : Tcpreplay vulnerabilities (USN-7231-1)), which helps to determine the existence of the flaw in a target environment.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the databases at Tenable (214723) and EUVD (EUVD-2023-31519). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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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: 🔍

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Nessus ID: 214723
Nessus Name: Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS : Tcpreplay vulnerabilities (USN-7231-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

03/05/2023 🔍
03/16/2023 +11 days 🔍
03/16/2023 +0 days 🔍
11/23/2025 +983 days 🔍

Sourcesinfo

Advisory: 780
Status: Confirmed

CVE: CVE-2023-27783 (🔍)
GCVE (CVE): GCVE-0-2023-27783
GCVE (VulDB): GCVE-100-223252
EUVD: 🔍

Entryinfo

Created: 03/16/2023 20:36
Updated: 11/23/2025 06:26
Changes: 03/16/2023 20:36 (41), 04/11/2023 07:35 (11), 01/29/2025 02:12 (17), 11/23/2025 06:26 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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