Design/Logic Flaw

2018-02-1913:29:00

PRIOn knowledge base

www.prio-n.com

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

8.2 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.122 Low

EPSS

Percentile

95.3%

JSON

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.

CPENameOperatorVersion
ubuntu_linuxeq16.04
ubuntu_linuxeq14.04
ubuntu_linuxeq17.10
debian_linuxeq8.0
debian_linuxeq7.0
debian_linuxeq9.0
quaggale1.2.2
ruggedcom_rox_ii_firmwarelt2.13.0

Name	Operator	Version
ubuntu_linux	eq	16.04
ubuntu_linux	eq	14.04
ubuntu_linux	eq	17.10
debian_linux	eq	8.0
debian_linux	eq	7.0
debian_linux	eq	9.0
quagga	le	1.2.2
ruggedcom_rox_ii_firmware	lt	2.13.0