Critical severity · published Nov 6, 2023
CVE-2023-38406
bgpd/bgp_flowspec.c in FRRouting (FRR) before 8.4.3 mishandles an nlri length of zero, aka a "flowspec overflow."
9.8
CVSS
0.9%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
Frrouting · Frrouting
before 8.4.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-38406
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-38406
Patch
https://github.com/FRRouting/frr/compare/frr-8.4.2...frr-8.4.3
Issue Tracking
https://github.com/FRRouting/frr/pull/12884
lists.debian.org
https://lists.debian.org/debian-lts-announce/2024/04/msg00019.html
lists.debian.org
https://lists.debian.org/debian-lts-announce/2024/09/msg00007.html
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