CVE-2018-5381
5 Medium
CVSS2
Attack Vector
NETWORK
Attack 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
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
6.7 Medium
AI Score
Confidence
High
0.122 Low
EPSS
Percentile
95.4%
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 configurations
References
savannah.nongnu.org/forum/forum.php?forum_id=9095
www.kb.cert.org/vuls/id/940439
cert-portal.siemens.com/productcert/pdf/ssa-451142.pdf
gogs.quagga.net/Quagga/quagga/src/master/doc/security/Quagga-2018-1975.txt
lists.debian.org/debian-lts-announce/2018/02/msg00021.html
security.gentoo.org/glsa/201804-17
usn.ubuntu.com/3573-1/
www.debian.org/security/2018/dsa-4115
Related
5 Medium
CVSS2
Attack Vector
NETWORK
Attack 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
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
6.7 Medium
AI Score
Confidence
High
0.122 Low
EPSS
Percentile
95.4%