Home/CVE/The Quagga BGP daemon (bgpd) prior to version 1.2.3 has a bug in its parsing of "Capabilities" in BGP OPEN messages, in
CVE

CVE-2018-5381

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 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.

MEDIUM · CVSS 6.5 EPSS 0.0559
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  • EPSS percentile: top 10% of all CVEs by exploitation likelihood
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-228Improper Handling of Syntactically Invalid Structure
CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')
▤

Affected Products & Versions

4
quagga<= 1.2.2
canonical ubuntu linuxall versions
debian linuxall versions
siemens ruggedcom rox ii firmware< 2.13.0
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.0 · cret@cert.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD19 Feb 2018 · 01:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

7
suse-csafSUSE-SU-2024:3426-1
suse-csafopenSUSE-SU-2024:11290-1
usnUSN-3573-1
suse-csafSUSE-SU-2018:0455-1
suse-csafSUSE-SU-2018:0456-1
🔗

References & Sources

8
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://savannah.nongnu.org/forum/forum.php?forum_id=9095Third Party Advisory
http://www.kb.cert.org/vuls/id/940439Third Party AdvisoryUS Government Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-451142.pdfMitigationThird Party Advisory
https://gogs.quagga.net/Quagga/quagga/src/master/doc/security/Quagga-2018-1975.txtVendor Advisory
https://lists.debian.org/debian-lts-announce/2018/02/msg00021.htmlMailing ListThird Party Advisory
https://security.gentoo.org/glsa/201804-17Third Party Advisory
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