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Ubuntu 18.10 USN-3950-1 Critical: ZNC Denial of Service Vulnerability

ubuntu
Calendar Grey April 18, 2019
Dist Ubuntu Esm H88
Ubuntu Security Notice USN-3951-1 has been issued to fix a zlib package vulnerability, advising users to update for protection against crashes and security risks
ZNC could be made to crash or run programs if it received speciallycrafted network traffic.

Summary

ZNC could be made to crash or run programs if it received specially

crafted network traffic.

Software Description:

- znc: advanced modular IRC bouncer

Details:

It was discovered that ZNC incorrectly handled certain invalid encodings.

An authenticated remote user could use this issue to cause ZNC to crash,

resulting in a denial of service, or possibly execute arbitrary code.

Topics%20covered

Topics Covered

security advisory denial of service software issue network traffic ubuntu znc

Update Instructions

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

Ubuntu 18.10:
  znc                             1.7.1-2ubuntu0.1

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-3950-1

CVE-2019-9917

Severity
critical
Lowest
Low
Medium
High
Critical

April 18, 2019

Topics%20covered

Topics Covered

security advisory denial of service software issue network traffic ubuntu znc

Package Information

https://launchpad.net/ubuntu/+source/znc/1.7.1-2ubuntu0.1

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