CVE-2018-5381
CVE-2018-5381 Vulnerability Analysis & Exploit Intelligence
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.
Published Updated Sources: cvelistV5, certcc
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.
Exploitation
Unreported
no source claims exploitation
EPSS
30%
chance of exploitation in 30 days
CVSS base
6.5
MEDIUM
Affected scope
The catalog records vendors and products as separate lists, not pairs, so which product belongs to which vendor is not something this page can say.
Vendors (1)
Products (1)
Every base score collected
Sources score independently and disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Source |
|---|---|---|---|---|---|
| 6.5 | CVSS 3.0 | MEDIUM | — | — | cvelistV5 |
Weakness & attack patterns
- CWE-228
Detection
Read off the CVSS vector and the weakness class. Starting points, not rules we have tested.
- Search application, proxy, and WAF logs for requests touching /SAFI.
References
8 on the record
- gogs.quagga.net/Quagga/quagga/src/master/doc/security/Quagga-2018-1975.txt
x_refsource_CONFIRM
- usn.ubuntu.com/3573-1/
vendor-advisory, x_refsource_UBUNTU
- www.debian.org/security/2018/dsa-4115
vendor-advisory, x_refsource_DEBIAN
- savannah.nongnu.org/forum/forum.php?forum_id=9095
x_refsource_CONFIRM
- security.gentoo.org/glsa/201804-17
vendor-advisory, x_refsource_GENTOO
- lists.debian.org/debian-lts-announce/2018/02/msg00021.html
mailing-list, x_refsource_MLIST
- www.kb.cert.org/vuls/id/940439
third-party-advisory, x_refsource_CERT-VN
- cert-portal.siemens.com/productcert/pdf/ssa-451142.pdf
x_refsource_CONFIRM
Elsewhere on this site
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.