The Quagga BGP daemon (bgpd) prior to version 1.2.3 can double-free memory when processing certain forms of UPDATE message, containing cluster-list and/or unknown attributes. A successful attack could cause a denial of service or potentially allow an attacker to execute arbitrary code.
The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Quagga | Quagga | * | 1.2.2 (including) |
| Red Hat Enterprise Linux 7 | RedHat | quagga-0:0.99.22.4-5.el7_4 | * |
| Quagga | Ubuntu | artful | * |
| Quagga | Ubuntu | devel | * |
| Quagga | Ubuntu | trusty | * |
| Quagga | Ubuntu | upstream | * |
| Quagga | Ubuntu | xenial | * |