Upstream information
Description
Net::CIDR versions before 0.24 for Perl mishandle leading zeros in IP CIDR addresses, which may have unspecified impact.The functions `addr2cidr` and `cidrlookup` may return leading zeros in a CIDR string, which may in turn be parsed as octal numbers by subsequent users. In some cases an attacker may be able to leverage this to bypass access controls based on IP addresses.
The documentation advises validating untrusted CIDR strings with the `cidrvalidate` function. However, this mitigation is optional and not enforced by default. In practice, users may call `addr2cidr` or `cidrlookup` with untrusted input and without validation, incorrectly assuming that this is safe.
SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having important severity.
| CVSS detail | CNA (CISA-ADP) | SUSE |
|---|---|---|
| Base Score | 6.5 | 8.2 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Privileges Required | None | None |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | Low | High |
| Integrity Impact | Low | Low |
| Availability Impact | None | None |
| CVSSv3 Version | 3.1 | 3.1 |
| CVSS detail | SUSE |
|---|---|
| Base Score | 7.8 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:H/SI:L/SA:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Attack Requirements | None |
| Privileges Required | None |
| User Interaction | None |
| Vulnerable System Confidentiality Impact | None |
| Vulnerable System Integrity Impact | Low |
| Vulnerable System Availability Impact | None |
| Subsequent System Confidentiality Impact | High |
| Subsequent System Integrity Impact | Low |
| Subsequent System Availability Impact | None |
| CVSSv4 Version | 4.0 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP7 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Module for Development Tools 15 SP7 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server 15 SP7 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | perl-Net-CIDR-Lite | Ignore |
| openSUSE Leap 15.6 | perl-Net-CIDR-Lite | Ignore |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Module for Development Tools 15 SP4 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Module for Development Tools 15 SP5 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server 15 SP4 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server 15 SP4-LTSS | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server 15 SP5 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server 15 SP5-LTSS | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server 15 SP6-LTSS | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | perl-Net-CIDR-Lite | Ignore |
| SUSE Manager Proxy 4.3 | perl-Net-CIDR-Lite | Ignore |
| SUSE Manager Retail Branch Server 4.3 | perl-Net-CIDR-Lite | Ignore |
| SUSE Manager Server 4.3 | perl-Net-CIDR-Lite | Ignore |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE CaaS Platform 4.0 | perl-Net-CIDR-Lite | Ignore |
| SUSE Enterprise Storage 6 | perl-Net-CIDR-Lite | Ignore |
| SUSE Enterprise Storage 7 | perl-Net-CIDR-Lite | Ignore |
| SUSE Enterprise Storage 7.1 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Desktop 15 SP1 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Desktop 15 SP2 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Desktop 15 SP3 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Desktop 15 SP4 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Desktop 15 SP5 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Desktop 15 SP6 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Module for Development Tools 15 SP1 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Module for Development Tools 15 SP2 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Module for Development Tools 15 SP3 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Module for Development Tools 15 SP6 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Real Time 15 SP2 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Real Time 15 SP3 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Real Time 15 SP4 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server 15 SP1 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server 15 SP1-BCL | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server 15 SP1-LTSS | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server 15 SP2 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server 15 SP2-BCL | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server 15 SP2-LTSS | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server 15 SP3 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server 15 SP3-BCL | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server 15 SP3-LTSS | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server 15 SP6 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | perl-Net-CIDR-Lite | Ignore |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | perl-Net-CIDR-Lite | Ignore |
| SUSE Manager Proxy 4.0 | perl-Net-CIDR-Lite | Ignore |
| SUSE Manager Proxy 4.1 | perl-Net-CIDR-Lite | Ignore |
| SUSE Manager Proxy 4.2 | perl-Net-CIDR-Lite | Ignore |
| SUSE Manager Retail Branch Server 4.0 | perl-Net-CIDR-Lite | Ignore |
| SUSE Manager Retail Branch Server 4.1 | perl-Net-CIDR-Lite | Ignore |
| SUSE Manager Retail Branch Server 4.2 | perl-Net-CIDR-Lite | Ignore |
| SUSE Manager Server 4.0 | perl-Net-CIDR-Lite | Ignore |
| SUSE Manager Server 4.1 | perl-Net-CIDR-Lite | Ignore |
| SUSE Manager Server 4.2 | perl-Net-CIDR-Lite | Ignore |
| openSUSE Leap 15.3 | perl-Net-CIDR-Lite | Ignore |
| openSUSE Leap 15.4 | perl-Net-CIDR-Lite | Ignore |
| openSUSE Leap 15.5 | perl-Net-CIDR-Lite | Ignore |
SUSE Timeline for this CVE
CVE page created: Fri Feb 27 04:03:01 2026CVE page last modified: Sat Feb 28 00:50:03 2026