Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks such as virtual private network (VPN).
Security Fix(es):
* libreswan: IKEv2 Use-After-Free bug when using IKE-over-TCP (CVE-2026-94453)
* libreswan: IKEv2 pre-authentication Null Pointer deref in EAP code (CVE-2026-77206)
* libreswan: Null Pointer Dereference in PKCS#7 bundle with no CERTS (CVE-2026-77207)
For more details about the security issue(s), including the impact, a CVSS sc
Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks such as virtual private network (VPN).
Security Fix(es):
* librenswan: IKEv1 Denial of Service via RSA-SHA1 (PKCS#1 Version 1.5 Encrypted) authentication payload (CVE-2026-50721)
* librenswan: IKEv2 Denial of Service via RSA-SHA1 (PKCS#1 RSASSA-PKCS1-v1_5) authentication payload (CVE-2026-50722)
* librenswan: IKEv2 Denial of Service via malformed fragmentation (CVE-2026-12413)
* lib
Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks such as virtual private network (VPN).
Security Fix(es):
* libreswan: Invalid IKEv2 REKEY proposal causes restart (CVE-2023-38710)
* libreswan: Invalid IKEv1 Quick Mode ID causes restart (CVE-2023-38711)
* libreswan: Invalid IKEv1 repeat IKE SA delete causes crash and restart (CVE-2023-38712)
For more details about the security issue(s), including the impact, a CVSS score, acknowled
Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks such as virtual private network (VPN).
Security Fix(es):
* libreswan: IKEv1 default AH/ESP responder can crash and restart (CVE-2024-3652)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks such as virtual private network (VPN).
Security Fix(es):
* libreswan: Missing PreSharedKey for connection can cause crash (CVE-2024-2357)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks such as virtual private network (VPN).
Security Fix(es):
* libreswan: Regression of CVE-2023-30570 fixes in the Rocky Linux (CVE-2023-2295)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks such as virtual private network (VPN).
Security Fix(es):
* libreswan: Malicious IKEv1 packet can cause libreswan to restart (CVE-2022-23094)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.