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Ubuntu 20.04 LTS USN-6712-1 Critical: Net::CIDR::Lite Network Access Issue

ubuntu
Calendar Grey March 25, 2024
Dist Ubuntu Esm H88
A significant vulnerability in Net::CIDR::Lite could permit unapproved access to network resources for users of Ubuntu 20.04 LTS. Take immediate action!
Net::CIDR::Lite could allow unintended access to network services.

Summary

Net::CIDR::Lite could allow unintended access to network services.

Software Description:

- libnet-cidr-lite-perl: module for merging IPv4 or IPv6 CIDR address ranges

Details:

It was discovered that Net::CIDR::Lite incorrectly handled extra zero

characters at the beginning of IP address strings. A remote attacker could

possibly use this issue to bypass access controls.

Topics%20covered

Topics Covered

security advisory critical access control ubuntu network access libnet-cidr-lite-perl Net::CIDR::Lite

Update Instructions

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

Ubuntu 20.04 LTS:
   libnet-cidr-lite-perl           0.21-2ubuntu0.1

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

References

CVE-2021-47154

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6712-1

Topics%20covered

Topics Covered

security advisory critical access control ubuntu network access libnet-cidr-lite-perl Net::CIDR::Lite

Package Information

https://launchpad.net/ubuntu/+source/libnet-cidr-lite-perl/0.21-2ubuntu0.1

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