Vulnerabilities (CVE)

Join the Common Vulnerabilities and Exposures (CVE) community and start to get notified about new vulnerabilities.

Filtered by vendor Strongswan Subscribe
Filtered by product Strongswan
Total 34 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2013-2054 1 Strongswan 1 Strongswan 2023-02-12 5.1 MEDIUM N/A
Buffer overflow in the atodn function in strongSwan 2.0.0 through 4.3.4, when Opportunistic Encryption is enabled and an RSA key is being used, allows remote attackers to cause a denial of service (pluto IKE daemon crash) and possibly execute arbitrary code via crafted DNS TXT records. NOTE: this might be the same vulnerability as CVE-2013-2053 and CVE-2013-2054.
CVE-2022-40617 4 Canonical, Debian, Fedoraproject and 1 more 4 Ubuntu Linux, Debian Linux, Fedora and 1 more 2023-01-27 N/A 7.5 HIGH
strongSwan before 5.9.8 allows remote attackers to cause a denial of service in the revocation plugin by sending a crafted end-entity (and intermediate CA) certificate that contains a CRL/OCSP URL that points to a server (under the attacker's control) that doesn't properly respond but (for example) just does nothing after the initial TCP handshake, or sends an excessive amount of application data.
CVE-2021-45079 4 Canonical, Debian, Fedoraproject and 1 more 5 Ubuntu Linux, Debian Linux, Extra Packages For Enterprise Linux and 2 more 2022-07-12 5.8 MEDIUM 9.1 CRITICAL
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.
CVE-2021-41991 4 Debian, Fedoraproject, Siemens and 1 more 46 Debian Linux, Fedora, Cp 1543-1 and 43 more 2022-04-12 5.0 MEDIUM 7.5 HIGH
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.
CVE-2021-41990 4 Debian, Fedoraproject, Siemens and 1 more 37 Debian Linux, Fedora, 6gk5615-0aa00-2aa2 and 34 more 2022-04-12 5.0 MEDIUM 7.5 HIGH
The gmp plugin in strongSwan before 5.9.4 has a remote integer overflow via a crafted certificate with an RSASSA-PSS signature. For example, this can be triggered by an unrelated self-signed CA certificate sent by an initiator. Remote code execution cannot occur.
CVE-2018-10811 4 Canonical, Debian, Fedoraproject and 1 more 4 Ubuntu Linux, Debian Linux, Fedora and 1 more 2021-05-18 5.0 MEDIUM 7.5 HIGH
strongSwan 5.6.0 and older allows Remote Denial of Service because of Missing Initialization of a Variable.
CVE-2019-10155 5 Fedoraproject, Libreswan, Redhat and 2 more 5 Fedora, Libreswan, Enterprise Linux and 2 more 2020-09-30 3.5 LOW 3.1 LOW
The Libreswan Project has found a vulnerability in the processing of IKEv1 informational exchange packets which are encrypted and integrity protected using the established IKE SA encryption and integrity keys, but as a receiver, the integrity check value was not verified. This issue affects versions before 3.29.
CVE-2018-6459 1 Strongswan 1 Strongswan 2020-03-29 5.0 MEDIUM 5.3 MEDIUM
The rsa_pss_params_parse function in libstrongswan/credentials/keys/signature_params.c in strongSwan 5.6.1 allows remote attackers to cause a denial of service via a crafted RSASSA-PSS signature that lacks a mask generation function parameter.
CVE-2018-17540 3 Canonical, Debian, Strongswan 3 Ubuntu Linux, Debian Linux, Strongswan 2019-11-30 5.0 MEDIUM 7.5 HIGH
The gmp plugin in strongSwan before 5.7.1 has a Buffer Overflow via a crafted certificate.
CVE-2018-16151 3 Canonical, Debian, Strongswan 3 Ubuntu Linux, Debian Linux, Strongswan 2019-11-30 5.0 MEDIUM 7.5 HIGH
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.
CVE-2018-16152 3 Canonical, Debian, Strongswan 3 Ubuntu Linux, Debian Linux, Strongswan 2019-11-30 5.0 MEDIUM 7.5 HIGH
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.
CVE-2018-5388 3 Canonical, Debian, Strongswan 3 Ubuntu Linux, Debian Linux, Strongswan 2019-10-09 4.0 MEDIUM 6.5 MEDIUM
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.
CVE-2017-9023 1 Strongswan 1 Strongswan 2019-10-02 4.3 MEDIUM 7.5 HIGH
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.
CVE-2009-2185 2 Strongswan, Xelerance 2 Strongswan, Openswan 2019-07-29 5.0 MEDIUM N/A
The ASN.1 parser (pluto/asn1.c, libstrongswan/asn1/asn1.c, libstrongswan/asn1/asn1_parser.c) in (a) strongSwan 2.8 before 2.8.10, 4.2 before 4.2.16, and 4.3 before 4.3.2; and (b) openSwan 2.6 before 2.6.22 and 2.4 before 2.4.15 allows remote attackers to cause a denial of service (pluto IKE daemon crash) via an X.509 certificate with (1) crafted Relative Distinguished Names (RDNs), (2) a crafted UTCTIME string, or (3) a crafted GENERALIZEDTIME string.
CVE-2009-0790 2 Strongswan, Xelerance 2 Strongswan, Openswan 2019-07-29 5.0 MEDIUM N/A
The pluto IKE daemon in Openswan and Strongswan IPsec 2.6 before 2.6.21 and 2.4 before 2.4.14, and Strongswan 4.2 before 4.2.14 and 2.8 before 2.8.9, allows remote attackers to cause a denial of service (daemon crash and restart) via a crafted (1) R_U_THERE or (2) R_U_THERE_ACK Dead Peer Detection (DPD) IPsec IKE Notification message that triggers a NULL pointer dereference related to inconsistent ISAKMP state and the lack of a phase2 state association in DPD.
CVE-2017-9022 3 Canonical, Debian, Strongswan 3 Ubuntu Linux, Debian Linux, Strongswan 2019-04-16 5.0 MEDIUM 7.5 HIGH
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.
CVE-2013-5018 2 Opensuse, Strongswan 2 Opensuse, Strongswan 2018-10-30 4.3 MEDIUM N/A
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.
CVE-2014-9221 5 Canonical, Debian, Fedoraproject and 2 more 5 Ubuntu Linux, Debian Linux, Fedora and 2 more 2018-10-30 5.0 MEDIUM N/A
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.
CVE-2015-3991 1 Strongswan 1 Strongswan 2018-08-13 7.5 HIGH 9.8 CRITICAL
strongSwan 5.2.2 and 5.3.0 allows remote attackers to cause a denial of service (daemon crash) or execute arbitrary code.
CVE-2013-2944 1 Strongswan 1 Strongswan 2018-08-13 4.9 MEDIUM N/A
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.