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Status published
Medium
CVE-2018-5381
The Quagga BGP daemon (bgpd) prior to version 1.2.3 has...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://gogs.quagga.net/Quagga/quagga/src/master/doc/security/Quagga-2018-1975.txt
- https://usn.ubuntu.com/3573-1/
- https://www.debian.org/security/2018/dsa-4115
- http://savannah.nongnu.org/forum/forum.php?forum_id=9095
- https://security.gentoo.org/glsa/201804-17
- https://lists.debian.org/debian-lts-announce/2018/02/msg00021.html
- http://www.kb.cert.org/vuls/id/940439
- https://cert-portal.siemens.com/productcert/pdf/ssa-451142.pdf
Affected Vendor
Quagga
View all reports →Affected Software
bgpd
Vulnerable Versions:
bpgd
Timeline
Official Publish:
February 19th, 2018
Last Modified:
September 16th, 2024
Added to House:
July 20th, 2026
CVSS Vectors
V3:
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.