Flow Specification Overflow Vulnerability in FRRouting Software
CVE-2023-38406

9.8CRITICAL

Key Information:

Vendor

Frrouting

Status
Frrouting
Vendor
CVE Published:
6 November 2023

What is CVE-2023-38406?

In FRRouting versions prior to 8.4.3, a significant vulnerability exists in the bgpd/bgp_flowspec.c component, where an improper handling of a zero-length Network Layer Reachability Information (NLRI) can lead to a flowspec overflow. This can have serious implications for the routing functionality and could potentially be exploited to disrupt network operations. Users are strongly advised to upgrade to version 8.4.3 or later to mitigate risks associated with this vulnerability, ensuring the integrity and reliability of their network infrastructure.

References

https://github.com/FRRouting/frr/pull/12884
https://github.com/FRRouting/frr/compare/frr-8.4.2...frr-...
https://lists.debian.org/debian-lts-announce/2024/04/msg0...
mailing-list

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.