CVE-2018-5381

Publication date 13 February 2018

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

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.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
quagga	17.10 artful	Fixed 1.1.1-3ubuntu0.2
	16.04 LTS xenial	Fixed 0.99.24.1-2ubuntu1.4
	14.04 LTS trusty	Fixed 0.99.22.4-3ubuntu1.5

Notes

mdeslaur

this is Quagga-2018-1975

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-3573-1
Quagga vulnerabilities
16 February 2018