InspIRCd up to 2.0.28/3.5.x pgsql use after free

Summaryinfo

A vulnerability identified as problematic has been detected in InspIRCd up to 2.0.28/3.5.x. The impacted element is an unknown function of the component pgsql Module. The manipulation leads to use after free. This vulnerability is referenced as CVE-2020-25269. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in InspIRCd up to 2.0.28/3.5.x. It has been rated as problematic. This issue affects some unknown functionality of the component pgsql Module. 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 availability. The summary by CVE is:

An issue was discovered in InspIRCd 2 before 2.0.29 and 3 before 3.6.0. The pgsql module contains a use after free vulnerability. When combined with the sqlauth or sqloper modules, this vulnerability can be used for remote crashing of an InspIRCd server by any user able to connect to a server.

The weakness was published 09/11/2020. The identification of this vulnerability is CVE-2020-25269 since 09/11/2020. The attack may be initiated remotely. A simple authentication is required for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 233771 (Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : InspIRCd vulnerabilities (USN-7405-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.0.29 or 3.6.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (233771). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

• InspIRCd

Version

• 2.0.0
• 2.0.1
• 2.0.2
• 2.0.3
• 2.0.4
• 2.0.5
• 2.0.6
• 2.0.7
• 2.0.8
• 2.0.9
• 2.0.10
• 2.0.11
• 2.0.12
• 2.0.13
• 2.0.14
• 2.0.15
• 2.0.16
• 2.0.17
• 2.0.18
• 2.0.19
• 2.0.20
• 2.0.21
• 2.0.22
• 2.0.23
• 2.0.24
• 2.0.25
• 2.0.26
• 2.0.27
• 2.0.28
• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5

CPE 2.3info

• 🔍
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CPE 2.2info

• 🔍
• 🔍
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Be aware that VulDB is the high quality source for vulnerability data.

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