UBUNTU-CVE-2026-49941

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Source
https://ubuntu.com/security/CVE-2026-49941
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49941.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-49941
Upstream
Published
2026-06-04T17:16:00Z
Modified
2026-06-12T09:11:50.316472053Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Net::CIDR::Set versions through 0.20 for Perl did not validate IP addresses. The add method called the _encode method to parse addresses. If the addresses did not look like netmasks or network ranges, then they were assumed to single IP addresses and passed back to itself as a 32-bit or 128-bit netmask. If the argument was not a well-formed IP address, then this would lead to indefinite recursion. An attacker could use this to cause a denial of service.

References

Affected packages

Ubuntu:20.04:LTS / libnet-cidr-set-perl

Package

Name
libnet-cidr-set-perl
Purl
pkg:deb/ubuntu/libnet-cidr-set-perl?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.13-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.13-2",
            "binary_name": "libnet-cidr-set-perl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49941.json"

Ubuntu:22.04:LTS / libnet-cidr-set-perl

Package

Name
libnet-cidr-set-perl
Purl
pkg:deb/ubuntu/libnet-cidr-set-perl?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.13-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.13-3",
            "binary_name": "libnet-cidr-set-perl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49941.json"

Ubuntu:24.04:LTS / libnet-cidr-set-perl

Package

Name
libnet-cidr-set-perl
Purl
pkg:deb/ubuntu/libnet-cidr-set-perl?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.13-4
0.13-5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.13-5",
            "binary_name": "libnet-cidr-set-perl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49941.json"

Ubuntu:25.10 / libnet-cidr-set-perl

Package

Name
libnet-cidr-set-perl
Purl
pkg:deb/ubuntu/libnet-cidr-set-perl?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.13-5
0.15-1
0.19-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.19-1",
            "binary_name": "libnet-cidr-set-perl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49941.json"

Ubuntu:26.04:LTS / libnet-cidr-set-perl

Package

Name
libnet-cidr-set-perl
Purl
pkg:deb/ubuntu/libnet-cidr-set-perl?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.19-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.19-1",
            "binary_name": "libnet-cidr-set-perl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49941.json"