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CVE-2019-5892

N/A
Published: January 10, 2019 at 05:00 PM UTC
Updated: June 17, 2026 at 02:38 AM UTC
1 product affected across 1 vendorFRRouting

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Severity
N/A
Exploit prediction
EPSS 3%

Description

bgpd in FRRouting FRR (aka Free Range Routing) 2.x and 3.x before 3.0.4, 4.x before 4.0.1, 5.x before 5.0.2, and 6.x before 6.0.2 (not affecting Cumulus Linux or VyOS), when ENABLE_BGP_VNC is used for Virtual Network Control, allows remote attackers 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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

FRRouting· Frrouting
95%
2.0 ≤ v ≤ 2.0.23.0 ≤ v < 3.0.45.0 ≤ v < 5.0.26.0 ≤ v < 6.0.24.0
Affected range stops below 3.0.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.0.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.0.2, so it looks safe — our inference, not a vendor statement

References (7)

x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://frrouting.org/community/security/cve-2019-5892.html
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/FRRouting/frr/commit/943d595a018e69b550db08cccba1d0778a86705a
x_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/FRRouting/frr/releases/tag/frr-3.0.4
x_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/FRRouting/frr/releases/tag/frr-4.0.1
x_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/FRRouting/frr/releases/tag/frr-5.0.2
x_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/FRRouting/frr/releases/tag/frr-6.0.2
x_refsource_MISCPatchVendor Advisory
Source: [email protected]
https://lists.frrouting.org/pipermail/frog/2019-January/000404.html

CVSS

4MEDIUM[email protected]
Confidentiality
NONE
Integrity
NONE
Availability
PARTIAL
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-436

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