Executive Summary

Summary
Title ZNC vulnerability
Informations
Name USN-4044-1 First vendor Publication 2019-07-01
Vendor Ubuntu Last vendor Modification 2019-07-01
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:S/C:P/I:P/A:P)
Cvss Base Score 6.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 19.04 - Ubuntu 18.10 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS

Summary:

znc could be made to crash or run programs as an administrator if it opened a specially crafted file.

Software Description: - znc: advanced modular IRC bouncer

Details:

Fix vulnerability where an authenticated non-admin users could load a module with a crafted name, then escalate privileges and run arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 19.04:
znc 1.7.2-2ubuntu0.1

Ubuntu 18.10:
znc 1.7.1-2ubuntu0.2

Ubuntu 18.04 LTS:
znc 1.6.6-1ubuntu0.2

Ubuntu 16.04 LTS:
znc 1.6.3-1ubuntu0.2

After a standard system update you need to restart znc to make all the necessary changes.

References:
https://usn.ubuntu.com/4044-1
CVE-2019-12816

Package Information:
https://launchpad.net/ubuntu/+source/znc/1.7.2-2ubuntu0.1
https://launchpad.net/ubuntu/+source/znc/1.7.1-2ubuntu0.2
https://launchpad.net/ubuntu/+source/znc/1.6.6-1ubuntu0.2
https://launchpad.net/ubuntu/+source/znc/1.6.3-1ubuntu0.2

Original Source

Url : http://www.ubuntu.com/usn/USN-4044-1

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-20 Improper Input Validation

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 26

Alert History

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0
Date Informations
2019-07-02 21:19:00
  • First insertion