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Search Parameters:
  • Results Type: Overview
  • Keyword (text search): cpe:2.3:a:strongswan:strongswan:5.0.1:*:*:*:*:*:*:*
  • CPE Name Search: true
There are 18 matching records.
Displaying matches 1 through 18.
Vuln ID Summary CVSS Severity
CVE-2021-45079

In strongSwan before 5.9.5, a malicious responder can send an EAP-Success message too early without actually authenticating the client and (in the case of EAP methods with mutual authentication and EAP-only authentication for IKEv2) even without server authentication.

Published: January 31, 2022; 3:15:07 AM -0500
V3.1: 9.1 CRITICAL
V2.0: 5.8 MEDIUM
CVE-2021-41991

The in-memory certificate cache in strongSwan before 5.9.4 has a remote integer overflow upon receiving many requests with different certificates to fill the cache and later trigger the replacement of cache entries. The code attempts to select a less-often-used cache entry by means of a random number generator, but this is not done correctly. Remote code execution might be a slight possibility.

Published: October 18, 2021; 10:15:10 AM -0400
V3.1: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2018-17540

The gmp plugin in strongSwan before 5.7.1 has a Buffer Overflow via a crafted certificate.

Published: October 03, 2018; 4:29:09 PM -0400
V3.0: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2018-16152

In verify_emsa_pkcs1_signature() in gmp_rsa_public_key.c in the gmp plugin in strongSwan 4.x and 5.x before 5.7.0, the RSA implementation based on GMP does not reject excess data in the digestAlgorithm.parameters field during PKCS#1 v1.5 signature verification. Consequently, a remote attacker can forge signatures when small public exponents are being used, which could lead to impersonation when only an RSA signature is used for IKEv2 authentication. This is a variant of CVE-2006-4790 and CVE-2014-1568.

Published: September 26, 2018; 5:29:01 PM -0400
V3.0: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2018-16151

In verify_emsa_pkcs1_signature() in gmp_rsa_public_key.c in the gmp plugin in strongSwan 4.x and 5.x before 5.7.0, the RSA implementation based on GMP does not reject excess data after the encoded algorithm OID during PKCS#1 v1.5 signature verification. Similar to the flaw in the same version of strongSwan regarding digestAlgorithm.parameters, a remote attacker can forge signatures when small public exponents are being used, which could lead to impersonation when only an RSA signature is used for IKEv2 authentication.

Published: September 26, 2018; 5:29:01 PM -0400
V3.0: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2018-10811

strongSwan 5.6.0 and older allows Remote Denial of Service because of Missing Initialization of a Variable.

Published: June 19, 2018; 5:29:00 PM -0400
V3.1: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2018-5388

In stroke_socket.c in strongSwan before 5.6.3, a missing packet length check could allow a buffer underflow, which may lead to resource exhaustion and denial of service while reading from the socket.

Published: May 31, 2018; 9:29:00 AM -0400
V3.0: 6.5 MEDIUM
V2.0: 4.0 MEDIUM
CVE-2017-11185

The gmp plugin in strongSwan before 5.6.0 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted RSA signature.

Published: August 18, 2017; 1:29:01 PM -0400
V3.0: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2017-9023

The ASN.1 parser in strongSwan before 5.5.3 improperly handles CHOICE types when the x509 plugin is enabled, which allows remote attackers to cause a denial of service (infinite loop) via a crafted certificate.

Published: June 08, 2017; 12:29:00 PM -0400
V3.0: 7.5 HIGH
V2.0: 4.3 MEDIUM
CVE-2017-9022

The gmp plugin in strongSwan before 5.5.3 does not properly validate RSA public keys before calling mpz_powm_sec, which allows remote peers to cause a denial of service (floating point exception and process crash) via a crafted certificate.

Published: June 08, 2017; 12:29:00 PM -0400
V3.0: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2015-8023

The server implementation of the EAP-MSCHAPv2 protocol in the eap-mschapv2 plugin in strongSwan 4.2.12 through 5.x before 5.3.4 does not properly validate local state, which allows remote attackers to bypass authentication via an empty Success message in response to an initial Challenge message.

Published: November 18, 2015; 11:59:07 AM -0500
V3.x:(not available)
V2.0: 5.0 MEDIUM
CVE-2015-4171

strongSwan 4.3.0 through 5.x before 5.3.2 and strongSwan VPN Client before 1.4.6, when using EAP or pre-shared keys for authenticating an IKEv2 connection, does not enforce server authentication restrictions until the entire authentication process is complete, which allows remote servers to obtain credentials by using a valid certificate and then reading the responses.

Published: June 10, 2015; 2:59:09 PM -0400
V3.x:(not available)
V2.0: 2.6 LOW
CVE-2014-9221

strongSwan 4.5.x through 5.2.x before 5.2.1 allows remote attackers to cause a denial of service (invalid pointer dereference) via a crafted IKEv2 Key Exchange (KE) message with Diffie-Hellman (DH) group 1025.

Published: January 07, 2015; 2:59:01 PM -0500
V3.x:(not available)
V2.0: 5.0 MEDIUM
CVE-2014-2891

strongSwan before 5.1.2 allows remote attackers to cause a denial of service (NULL pointer dereference and IKE daemon crash) via a crafted ID_DER_ASN1_DN ID payload.

Published: May 07, 2014; 6:55:06 AM -0400
V3.x:(not available)
V2.0: 5.0 MEDIUM
CVE-2014-2338

IKEv2 in strongSwan 4.0.7 before 5.1.3 allows remote attackers to bypass authentication by rekeying an IKE_SA during (1) initiation or (2) re-authentication, which triggers the IKE_SA state to be set to established.

Published: April 16, 2014; 2:37:14 PM -0400
V3.x:(not available)
V2.0: 6.4 MEDIUM
CVE-2013-6075

The compare_dn function in utils/identification.c in strongSwan 4.3.3 through 5.1.1 allows (1) remote attackers to cause a denial of service (out-of-bounds read, NULL pointer dereference, and daemon crash) or (2) remote authenticated users to impersonate arbitrary users and bypass access restrictions via a crafted ID_DER_ASN1_DN ID, related to an "insufficient length check" during identity comparison.

Published: November 02, 2013; 2:55:03 PM -0400
V3.x:(not available)
V2.0: 5.0 MEDIUM
CVE-2013-5018

The is_asn1 function in strongSwan 4.1.11 through 5.0.4 does not properly validate the return value of the asn1_length function, which allows remote attackers to cause a denial of service (segmentation fault) via a (1) XAuth username, (2) EAP identity, or (3) PEM encoded file that starts with a 0x04, 0x30, or 0x31 character followed by an ASN.1 length value that triggers an integer overflow.

Published: August 28, 2013; 7:55:10 PM -0400
V3.x:(not available)
V2.0: 4.3 MEDIUM
CVE-2013-2944

strongSwan 4.3.5 through 5.0.3, when using the OpenSSL plugin for ECDSA signature verification, allows remote attackers to authenticate as other users via an invalid signature.

Published: May 02, 2013; 10:55:05 AM -0400
V3.x:(not available)
V2.0: 4.9 MEDIUM