setup-ipsec-vpn

English | 简体中文 | 繁體中文 | 日本語 | Русский IPsec VPN Server Auto Setup Scripts Set up your own IPsec VPN server in just a few minutes, with IPsec/L2TP, Cisco IPsec and IKEv2. An IPsec VPN encrypts your network traffic, so that nobody between you and the VPN server can eavesdrop on your data as it...

Docker IPsec VPN Server

English | 简体中文 | 繁體中文 | Русский IPsec VPN Server on Docker Docker image to run an IPsec VPN server, with IPsec/L2TP, Cisco IPsec and IKEv2. Based on Alpine 3.23 or Debian 12 with Libreswan IPsec VPN software and xl2tpd L2TP daemon. An IPsec VPN encrypts your network traffic, so that nobody betwee...

librenswan: IKEv2 Denial of Service via RSA-SHA1 (PKCS#1 RSASSA-PKCS1-v1_5) authentication payload

A flaw was found in Libreswan's implementation of IKEv2 authentication when processing signatures utilizing the RSASSA-PKCS1-v15 scheme. The RSAauthenticatehashsignaturepkcs115rsa function does not correctly validate the DER encoding of the ASN.1 digest. A remote, unauthenticated attacker could...

librenswan: IKEv1 Denial of Service via RSA-SHA1 (PKCS#1 Version 1.5 Encrypted) authentication payload

A flaw was found in Libreswan's implementation of IKEv1 authentication via raw RSA signatures. When processing an IKEv1 packet using PKCS 1 v1.5 RSA encryption, the RSAauthenticatehashsignaturerawrsa function fails to properly validate the length of the authentication hash. A remote,...

libreswan: badly formatted X.509 certificate can cause an assertion failure that crashes the daemon process

A flaw was found in Libreswan. An unauthenticated remote attacker can send a specially crafted X.509 certificate payload during an IKEv1 or IKEv2 exchange. This flaw occurs when Libreswan is operating in FIPS Federal Information Processing Standards mode and processing a certificate with an inval...

Moderate: Red Hat Security Advisory: libreswan security update

An update for libreswan is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common...

EUVD-2026-100747

Libreswan in FIPS mode has a vulnerability where badly formed received certificates are rejected, but not deleted from the NSS cache. As a result, any real certificates with the same serial number are rejected as well. This can be abused to lock out legitimate peers from connecting. The...

EUVD-2026-100748

Libreswan's IKEv2 state machine has a null pointer dereference bug in the EAP handling code for authentication. As a result of inconsistency within the IKEv2 state machine code, this bug can be triggered by any IKEv2 connection, even if EAP is not configured at all. The error is caused by a...

EUVD-2026-100749

Libreswan has a null pointer dereference bug in the PKCS7 handling code for IKE certificate authentication. When libreswan decodes an IKE CERT payload of type CERTPKCS7WRAPPEDX509, it guards the PKCS7 blob with SECPKCS7ContainsCertsOrCrls and then iterates the certificate list with...

EUVD-2026-100744

Libreswan's pluto daemon has a use-after-free vulnerability when a client connecting using IKE over TCP closes the connection and another packet retransmit or malicious is received for the same tuple. IKE state is retained in memory after the client closes the connection, storing a pointer to...

AZL-108027 CVE-2026-94453 affecting package libreswan 4.15-3

Libreswan's pluto daemon has a use-after-free vulnerability when a client connecting using IKE over TCP closes the connection and another packet retransmit or malicious is received for the same tuple. IKE state is retained in memory after the client closes the connection, storing a pointer to...

DEBIAN-CVE-2026-94453

Libreswan's pluto daemon has a use-after-free vulnerability when a client connecting using IKE over TCP closes the connection and another packet retransmit or malicious is received for the same tuple. IKE state is retained in memory after the client closes the connection, storing a pointer to...

CVE-2026-94453

Libreswan's pluto daemon has a use-after-free vulnerability when a client connecting using IKE over TCP closes the connection and another packet retransmit or malicious is received for the same tuple. IKE state is retained in memory after the client closes the connection, storing a pointer to...

UBUNTU-CVE-2026-94453

Libreswan's pluto daemon has a use-after-free vulnerability when a client connecting using IKE over TCP closes the connection and another packet retransmit or malicious is received for the same tuple. IKE state is retained in memory after the client closes the connection, storing a pointer to...

CVE-2026-94453

Libreswan's pluto daemon has a use-after-free vulnerability when a client connecting using IKE over TCP closes the connection and another packet retransmit or malicious is received for the same tuple. IKE state is retained in memory after the client closes the connection, storing a pointer to...

AZL-108033 CVE-2026-77207 affecting package libreswan 4.15-3

Libreswan has a null pointer dereference bug in the PKCS7 handling code for IKE certificate authentication. When libreswan decodes an IKE CERT payload of type CERTPKCS7WRAPPEDX509, it guards the PKCS7 blob with SECPKCS7ContainsCertsOrCrls and then iterates the certificate list with...

DEBIAN-CVE-2026-77207

Libreswan has a null pointer dereference bug in the PKCS7 handling code for IKE certificate authentication. When libreswan decodes an IKE CERT payload of type CERTPKCS7WRAPPEDX509, it guards the PKCS7 blob with SECPKCS7ContainsCertsOrCrls and then iterates the certificate list with...

CVE-2026-77207

Libreswan has a null pointer dereference bug in the PKCS7 handling code for IKE certificate authentication. When libreswan decodes an IKE CERT payload of type CERTPKCS7WRAPPEDX509, it guards the PKCS7 blob with SECPKCS7ContainsCertsOrCrls and then iterates the certificate list with...

DEBIAN-CVE-2026-77205

Libreswan in FIPS mode has a vulnerability where badly formed received certificates are rejected, but not deleted from the NSS cache. As a result, any real certificates with the same serial number are rejected as well. This can be abused to lock out legitimate peers from connecting. The...

DEBIAN-CVE-2026-77206

Libreswan's IKEv2 state machine has a null pointer dereference bug in the EAP handling code for authentication. As a result of inconsistency within the IKEv2 state machine code, this bug can be triggered by any IKEv2 connection, even if EAP is not configured at all. The error is caused by a...