VulnerabilityModified
CVE-2018-5381
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.
HIGH 7.5EPSS 30.2%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 30.2%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 30.16% probability · 98th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-228, CWE-835
- Affected
- quagga/quagga · canonical/ubuntu linux · debian/debian linux · siemens/ruggedcom rox ii firmware
- Source
- cret@cert.org
References
- http://savannah.nongnu.org/forum/forum.php?forum_id=9095Third Party Advisory
- http://www.kb.cert.org/vuls/id/940439Third Party Advisory, US Government Resource
- https://cert-portal.siemens.com/productcert/pdf/ssa-451142.pdfMitigation, Third 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 List, Third Party Advisory
- https://security.gentoo.org/glsa/201804-17Third Party Advisory
- https://usn.ubuntu.com/3573-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4115Third Party Advisory
- http://savannah.nongnu.org/forum/forum.php?forum_id=9095Third Party Advisory
- http://www.kb.cert.org/vuls/id/940439Third Party Advisory, US Government Resource
- https://cert-portal.siemens.com/productcert/pdf/ssa-451142.pdfMitigation, Third 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 List, Third Party Advisory
- https://security.gentoo.org/glsa/201804-17Third Party Advisory
- https://usn.ubuntu.com/3573-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4115Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.