Debian Security Advisory DSA 3398-1 (strongswan - security update)

Tobias Brunner found an authentication bypass vulnerability in strongSwan, an IKE/IPsec suite. Due to insufficient validation of its local state the server implementation of the EAP-MSCHAPv2 protocol in the eap-mschapv2 plugin can be tricked into successfully concluding the authentication without...

Debian Security Advisory DSA 2922-1 (strongswan - security update)

A vulnerability has been found in the ASN.1 parser of strongSwan, an IKE/IPsec suite used to establish IPsec protected links. By sending a crafted IDDERASN1DN ID payload to a vulnerable pluto or charon daemon, a malicious remote user can provoke a null pointer dereference in the daemon parsing th...

Debian Security Advisory DSA 2789-1 (strongswan - Denial of service and authorization bypass)

A vulnerability has been found in the ASN.1 parser of strongSwan, an IKE daemon used to establish IPsec protected links. By sending a crafted IDDERASN1DN ID payload to a vulnerable pluto or charon daemon, a malicious remote user can provoke a denial of service daemon crash or an authorization...

Debian Security Advisory DSA 2665-1 (strongswan - authentication bypass)

Kevin Wojtysiak discovered a vulnerability in strongSwan, an IPsec based VPN solution. When using the OpenSSL plugin for ECDSA based authentication, an empty, zeroed or otherwise invalid signature is handled as a legitimate one. An attacker could use a forged signature to authenticate like a...