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.
Weakness
The product calls free() twice on the same memory address.
Affected Software
| 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 | esm-infra/xenial | * |
| Quagga | Ubuntu | trusty | * |
| Quagga | Ubuntu | upstream | * |
| Quagga | Ubuntu | xenial | * |
Potential Mitigations
References
- http://savannah.nongnu.org/forum/forum.php?forum_id=9095
- http://www.kb.cert.org/vuls/id/940439
- http://www.securityfocus.com/bid/103105
- https://access.redhat.com/errata/RHSA-2018:0377
- https://cert-portal.siemens.com/productcert/pdf/ssa-451142.pdf
- https://gogs.quagga.net/Quagga/quagga/src/master/doc/security/Quagga-2018-1114.txt
- https://lists.debian.org/debian-lts-announce/2018/02/msg00021.html
- https://security.gentoo.org/glsa/201804-17
- https://usn.ubuntu.com/3573-1/
- https://www.debian.org/security/2018/dsa-4115
- http://savannah.nongnu.org/forum/forum.php?forum_id=9095
- http://www.kb.cert.org/vuls/id/940439
- http://www.securityfocus.com/bid/103105
- https://access.redhat.com/errata/RHSA-2018:0377
- https://cert-portal.siemens.com/productcert/pdf/ssa-451142.pdf
- https://gogs.quagga.net/Quagga/quagga/src/master/doc/security/Quagga-2018-1114.txt
- https://lists.debian.org/debian-lts-announce/2018/02/msg00021.html
- https://security.gentoo.org/glsa/201804-17
- https://usn.ubuntu.com/3573-1/
- https://www.debian.org/security/2018/dsa-4115