Null Pointer Dereference in FRRouting's BGP Flowspec Processor
CVE-2023-41909

7.5HIGH

Key Information:

Vendor

Frrouting

Status
Frrouting
Vendor
CVE Published:
5 September 2023

What is CVE-2023-41909?

The vulnerability discovered in FRRouting affects the bgp_nlri_parse_flowspec function in bgpd/bgp_flowspec.c. It processes malformed requests that lack required attributes, potentially leading to a NULL pointer dereference. This can have serious implications for network stability and security, making it essential for users to apply the necessary updates to mitigate risks associated with this flaw.

References

https://github.com/FRRouting/frr/pull/13222/commits/cfd04...
https://lists.debian.org/debian-lts-announce/2023/09/msg0...
mailing-list
https://lists.fedoraproject.org/archives/list/package-ann...
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.