APP: Quagga BGP Daemon bgp_capability_msg_parse Denial-of-Service
This signature detects attempts to exploit a known vulnerability in the BGP Daemon of Quagga. Successful exploitation could result in denial-of-service conditions.
Extended Description
The Quagga BGP daemon (bgpd) prior to version 1.2.3 has a bug in its parsing of "Capabilities" in BGP OPEN messages, in the bgp_packet.c:bgp_capability_msg_parse function. The parser can enter an infinite loop on invalid capabilities if a Multi-Protocol capability does not have a recognized AFI/SAFI, causing a denial of service.
Affected Products
Debian debian_linux
References
CVE: CVE-2018-5381
Short Name
APP:MISC:QUAGGA-BGP-CAP-DOS
Severity
Minor
Recommended
True
Recommended Action
Drop
Category
APP
Keywords
BGP CVE-2018-5381 Daemon Denial-of-Service Quagga bgp_capability_msg_parse
Release Date
04/05/2018
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3590
False Positive
Unknown
Vendors
Quagga
Debian
Canonical
CVSS Score
5.0