Medium severity · published Mar 11, 2024
CVE-2024-2357
IKEv2 misconfiguration can cause libreswan to abort and restart
6.5
CVSS
1%
EPSS
No
On KEV
Description
The Libreswan Project was notified of an issue causing libreswan to restart under some IKEv2 retransmit scenarios when a connection is configured to use PreSharedKeys (authby=secret) and the connection cannot find a matching configured secret. When such a connection is automatically added on startup using the auto= keyword, it can cause repeated crashes leading to a Denial of Service.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
libreswan · The Libreswan Project (www.libreswan.org)
4.2 through 4.12 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-2357
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-2357
libreswan.org
https://libreswan.org/security/CVE-2024-2357
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EJZJYFHKBIJ4ZK5GAWWFFR3AKJS6O5JX/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HEM46ALKF7NG6CAUKZ7KQERVOHWQIQKY/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TVQ7MZY6LFFGRWAJNTKKN2VSEFS2VPAR/
More from libreswan
6.5
CVE-2024-3652
IKEv1 default AH/ESP responder can cause libreswan to abort and restart