Packages
- libnet-cidr-lite-perl - module for merging IPv4 or IPv6 CIDR address ranges
Details
It was discovered that Net::CIDR::Lite incorrectly validated IP address and
CIDR mask inputs. An attacker could possibly use this issue to bypass IP
access control lists. (CVE-2026-45190)
It was discovered that Net::CIDR::Lite incorrectly handled extraneous zero
characters in CIDR mask values. An attacker could possibly use this issue
to bypass IP access control lists. (CVE-2026-45191)
It was discovered that Net::CIDR::Lite incorrectly validated IP address and
CIDR mask inputs. An attacker could possibly use this issue to bypass IP
access control lists. (CVE-2026-45190)
It was discovered that Net::CIDR::Lite incorrectly handled extraneous zero
characters in CIDR mask values. An attacker could possibly use this issue
to bypass IP access control lists. (CVE-2026-45191)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 26.04 LTS resolute | libnet-cidr-lite-perl – 0.22-2ubuntu0.26.04.2 | ||
| 25.10 questing | libnet-cidr-lite-perl – 0.22-2ubuntu0.25.10.2 | ||
| 24.04 LTS noble | libnet-cidr-lite-perl – 0.22-2ubuntu0.24.04.2 | ||
| 22.04 LTS jammy | libnet-cidr-lite-perl – 0.22-1ubuntu0.2 | ||
| 20.04 LTS focal | libnet-cidr-lite-perl – 0.21-2ubuntu0.1+esm2 | ||
| 18.04 LTS bionic | libnet-cidr-lite-perl – 0.21-1ubuntu0.18.04.1~esm2 | ||
| 16.04 LTS xenial | libnet-cidr-lite-perl – 0.21-1ubuntu0.16.04.1~esm2 | ||
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