CVE-2026-18664
When ranges are used for access control (i.e. of the form 1.2.3.4-1.2. ...
Einstufung nach Quelle
Trivys eigenes Label ist CRITICAL. Kritisch laut NVD.
Beschreibung
When ranges are used for access control (i.e. of the form 1.2.3.4-1.2.3.25), because NSD wrongly compares the IP address with the range on little endian systems, IPs that were meant to be allowed may be denied, and, IPs that were meant to be denied access could be allowed. An IPv4 address is compared with IPv4 ranges as unsigned 32 bit numbers directly with the endianness of the host, but the values to compare are in network byte order (big-endian). With IPv6 addresses the comparison is done in 4 times a unsigned 32 bit number comparison, again with the endianness of the host where all values are actually in network bye order.
Betroffene Pakete und behobene Versionen
| Quelle | Paket | Behoben in |
|---|---|---|
| alpine edge | nsd | 4.15.1-r0 |
| debian 11 | nsd | kein Fix angegeben |
| debian 12 | nsd | kein Fix angegeben |
| debian 13 | nsd | kein Fix angegeben |
| debian 14 | nsd | 4.15.1-1 |
| echo | nsd | kein Fix angegeben |
| rapidfort alpine 3.20 | nsd | 4.15.1-r0 |
| rapidfort alpine 3.21 | nsd | 4.15.1-r0 |
| rapidfort alpine 3.22 | nsd | 4.15.1-r0 |
| rapidfort alpine 3.23 | nsd | 4.15.1-r0 |
| rapidfort alpine 3.24 | nsd | 4.15.1-r0 |
| rapidfort debian 12 | nsd | 0:4.15.1-1 |
Alle 19 Einträge aus 19 Quellen zeigen
| Quelle | Paket | Behoben in |
|---|---|---|
| alpine edge | nsd | 4.15.1-r0 |
| debian 11 | nsd | kein Fix angegeben |
| debian 12 | nsd | kein Fix angegeben |
| debian 13 | nsd | kein Fix angegeben |
| debian 14 | nsd | 4.15.1-1 |
| echo | nsd | kein Fix angegeben |
| rapidfort alpine 3.20 | nsd | 4.15.1-r0 |
| rapidfort alpine 3.21 | nsd | 4.15.1-r0 |
| rapidfort alpine 3.22 | nsd | 4.15.1-r0 |
| rapidfort alpine 3.23 | nsd | 4.15.1-r0 |
| rapidfort alpine 3.24 | nsd | 4.15.1-r0 |
| rapidfort debian 12 | nsd | 0:4.15.1-1 |
| rapidfort debian 13 | nsd | 0:4.15.1-1 |
| rapidfort fedora 43 | nsd | 4.15.1-1.fc43 |
| rapidfort Oracle Linux 10 | nsd | 4.15.1-1.el10_4 |
| rapidfort Oracle Linux 9 | nsd | 4.15.1-1.el9 |
| rapidfort ubuntu 20.04 | nsd | kein Fix angegeben |
| rapidfort ubuntu 22.04 | nsd | kein Fix angegeben |
| rapidfort ubuntu 24.04 | nsd | kein Fix angegeben |