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…
- 6.5MediumCVSS base score
- 30.2%Exploitation in 30 daysEPSS · top 1.8% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By certcc
- 38 days later
· 38 days later
Published
- 7 years later
· 7 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| certccCNA (assigner) | 3.0 | Medium6.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 30.2% · top 1.8% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Affected products
References
8
- https://gogs.quagga.net/Quagga/quagga/src/master/doc/security/Quagga-2018-1975.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-3573-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- DSA-4115 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- http://savannah.nongnu.org/forum/forum.php?forum_id=9095 (opens in a new tab)x_refsource_CONFIRMx_transferred
- GLSA-201804-17 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- [debian-lts-announce] 20180216 [SECURITY] [DLA 1286-1] quagga security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- VU#940439 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- https://cert-portal.siemens.com/productcert/pdf/ssa-451142.pdf (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2018-17153 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-5381)Record last updated .