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6.5
CVSSv3

CVE-2019-5892

CVSSv4: NA | CVSSv3: 6.5 | CVSSv2: 4 | VMScore: 750 | EPSS: 0.03807 | KEV: Not Included
Published: 10/01/2019 Updated: 21/11/2024

Vulnerability Summary

bgpd in FRRouting FRR (aka Free Range Routing) 2.x and 3.x prior to 3.0.4, 4.x prior to 4.0.1, 5.x prior to 5.0.2, and 6.x prior to 6.0.2 (not affecting Cumulus Linux or VyOS), when ENABLE_BGP_VNC is used for Virtual Network Control, allows remote malicious users to cause a denial of service (peering session flap) via attribute 255 in a BGP UPDATE packet. This occurred during Disco in January 2019 because FRR does not implement RFC 7606, and therefore the packets with 255 were considered invalid VNC data and the BGP session was closed.

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frrouting frrouting

frrouting frrouting 4.0

References

CWE-436https://nvd.nist.govhttps://www.first.org/epsshttps://frrouting.org/community/security/cve-2019-5892.htmlhttps://github.com/FRRouting/frr/commit/943d595a018e69b550db08cccba1d0778a86705ahttps://github.com/FRRouting/frr/releases/tag/frr-3.0.4https://github.com/FRRouting/frr/releases/tag/frr-4.0.1https://github.com/FRRouting/frr/releases/tag/frr-5.0.2https://github.com/FRRouting/frr/releases/tag/frr-6.0.2https://lists.frrouting.org/pipermail/frog/2019-January/000404.htmlhttps://frrouting.org/community/security/cve-2019-5892.htmlhttps://github.com/FRRouting/frr/commit/943d595a018e69b550db08cccba1d0778a86705ahttps://github.com/FRRouting/frr/releases/tag/frr-3.0.4https://github.com/FRRouting/frr/releases/tag/frr-4.0.1https://github.com/FRRouting/frr/releases/tag/frr-5.0.2https://github.com/FRRouting/frr/releases/tag/frr-6.0.2https://lists.frrouting.org/pipermail/frog/2019-January/000404.html
Preferred Score:
CVSSv3
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Recommendations:
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