Search criteria
38 vulnerabilities by StrongSwan
CVE-2022-4967 (GCVE-0-2022-4967)
Vulnerability from cvelistv5 – Published: 2024-05-13 12:09 – Updated: 2025-02-13 16:38
VLAI?
Summary
strongSwan versions 5.9.2 through 5.9.5 are affected by authorization bypass through improper validation of certificate with host mismatch (CWE-297). When certificates are used to authenticate clients in TLS-based EAP methods, the IKE or EAP identity supplied by a client is not enforced to be contained in the client's certificate. So clients can authenticate with any trusted certificate and claim an arbitrary IKE/EAP identity as their own. This is problematic if the identity is used to make policy decisions. A fix was released in strongSwan version 5.9.6 in August 2022 (e4b4aabc4996fc61c37deab7858d07bc4d220136).
Severity ?
7.7 (High)
CWE
Assigner
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| strongSwan | strongSwan |
Affected:
5.9.2 , < 5.9.6
(semver)
|
Credits
Jan Schermer
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CVE-2023-41913 (GCVE-0-2023-41913)
Vulnerability from cvelistv5 – Published: 2023-12-07 00:00 – Updated: 2025-11-04 19:21
VLAI?
Summary
strongSwan before 5.9.12 has a buffer overflow and possible unauthenticated remote code execution via a DH public value that exceeds the internal buffer in charon-tkm's DH proxy. The earliest affected version is 5.3.0. An attack can occur via a crafted IKE_SA_INIT message.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2023-26463 (GCVE-0-2023-26463)
Vulnerability from cvelistv5 – Published: 2023-04-14 00:00 – Updated: 2025-02-13 16:44
VLAI?
Summary
strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable named "public" for two different purposes within the same function. There is initially incorrect access control, later followed by an expired pointer dereference. One attack vector is sending an untrusted client certificate during EAP-TLS. A server is affected only if it loads plugins that implement TLS-based EAP methods (EAP-TLS, EAP-TTLS, EAP-PEAP, or EAP-TNC). This is fixed in 5.9.10.
Severity ?
9.8 (Critical)
CWE
- n/a
Assigner
References
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CVE-2022-40617 (GCVE-0-2022-40617)
Vulnerability from cvelistv5 – Published: 2022-10-31 00:00 – Updated: 2025-05-06 18:29
VLAI?
Summary
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.
Severity ?
7.5 (High)
CWE
- n/a
Assigner
References
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|---|---|---|
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CVE-2021-45079 (GCVE-0-2021-45079)
Vulnerability from cvelistv5 – Published: 2022-01-31 07:15 – Updated: 2024-08-04 04:32
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
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CVE-2021-41990 (GCVE-0-2021-41990)
Vulnerability from cvelistv5 – Published: 2021-10-18 13:44 – Updated: 2024-08-04 03:22
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2021-41991 (GCVE-0-2021-41991)
Vulnerability from cvelistv5 – Published: 2021-10-18 13:44 – Updated: 2024-08-04 03:22
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2019-10155 (GCVE-0-2019-10155)
Vulnerability from cvelistv5 – Published: 2019-06-12 13:51 – Updated: 2024-08-04 22:10
VLAI?
Summary
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.
Severity ?
CWE
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| the libreswan Project | libreswan |
Affected:
3.29
|
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CVE-2018-17540 (GCVE-0-2018-17540)
Vulnerability from cvelistv5 – Published: 2018-10-03 20:00 – Updated: 2024-08-05 10:54
VLAI?
Summary
The gmp plugin in strongSwan before 5.7.1 has a Buffer Overflow via a crafted certificate.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2018-16152 (GCVE-0-2018-16152)
Vulnerability from cvelistv5 – Published: 2018-09-26 21:00 – Updated: 2025-12-03 20:24
VLAI?
Summary
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.
Severity ?
7.5 (High)
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||||||||
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CVE-2018-16151 (GCVE-0-2018-16151)
Vulnerability from cvelistv5 – Published: 2018-09-26 21:00 – Updated: 2025-12-03 20:26
VLAI?
Summary
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.
Severity ?
7.5 (High)
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||||||||
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CVE-2018-5389 (GCVE-0-2018-5389)
Vulnerability from cvelistv5 – Published: 2018-09-06 21:00 – Updated: 2024-08-05 05:33
VLAI?
Summary
The Internet Key Exchange v1 main mode is vulnerable to offline dictionary or brute force attacks. Reusing a key pair across different versions and modes of IKE could lead to cross-protocol authentication bypasses. It is well known, that the aggressive mode of IKEv1 PSK is vulnerable to offline dictionary or brute force attacks. For the main mode, however, only an online attack against PSK authentication was thought to be feasible. This vulnerability could allow an attacker to recover a weak Pre-Shared Key or enable the impersonation of a victim host or network.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| strongSwan | Strongswan |
Affected:
5.5.1
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CVE-2018-10811 (GCVE-0-2018-10811)
Vulnerability from cvelistv5 – Published: 2018-06-19 21:00 – Updated: 2024-08-05 07:46
VLAI?
Summary
strongSwan 5.6.0 and older allows Remote Denial of Service because of Missing Initialization of a Variable.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||||||||||||||
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CVE-2018-5388 (GCVE-0-2018-5388)
Vulnerability from cvelistv5 – Published: 2018-05-31 00:00 – Updated: 2024-08-05 05:33
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
Assigner
References
| URL | Tags | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| strongSwan | strongSwan |
Affected:
5.6.3 , < 5.6.3
(custom)
|
Credits
Thanks to Kevin Backhouse for reporting this vulnerability.
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CVE-2018-6459 (GCVE-0-2018-6459)
Vulnerability from cvelistv5 – Published: 2018-02-20 15:00 – Updated: 2024-08-05 06:01
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
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CVE-2015-3991 (GCVE-0-2015-3991)
Vulnerability from cvelistv5 – Published: 2017-09-07 20:00 – Updated: 2024-08-06 06:04
VLAI?
Summary
strongSwan 5.2.2 and 5.3.0 allows remote attackers to cause a denial of service (daemon crash) or execute arbitrary code.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2017-11185 (GCVE-0-2017-11185)
Vulnerability from cvelistv5 – Published: 2017-08-18 17:00 – Updated: 2025-12-04 15:57
VLAI?
Summary
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.
Severity ?
7.5 (High)
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
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CVE-2017-9022 (GCVE-0-2017-9022)
Vulnerability from cvelistv5 – Published: 2017-06-08 16:00 – Updated: 2025-12-03 21:16
VLAI?
Summary
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.
Severity ?
7.5 (High)
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2017-9023 (GCVE-0-2017-9023)
Vulnerability from cvelistv5 – Published: 2017-06-08 16:00 – Updated: 2025-12-03 21:13
VLAI?
Summary
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.
Severity ?
7.5 (High)
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2015-8023 (GCVE-0-2015-8023)
Vulnerability from cvelistv5 – Published: 2015-11-18 16:00 – Updated: 2024-08-06 08:06
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2015-4171 (GCVE-0-2015-4171)
Vulnerability from cvelistv5 – Published: 2015-06-10 18:00 – Updated: 2024-08-06 06:04
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2014-9221 (GCVE-0-2014-9221)
Vulnerability from cvelistv5 – Published: 2015-01-07 19:00 – Updated: 2024-08-06 13:40
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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|||||||||||||||||||||||||||||||||||
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CVE-2014-2891 (GCVE-0-2014-2891)
Vulnerability from cvelistv5 – Published: 2014-05-07 10:00 – Updated: 2024-08-06 10:28
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2014-2338 (GCVE-0-2014-2338)
Vulnerability from cvelistv5 – Published: 2014-04-16 18:00 – Updated: 2024-08-06 10:14
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2013-6076 (GCVE-0-2013-6076)
Vulnerability from cvelistv5 – Published: 2013-11-02 18:00 – Updated: 2024-09-16 19:46
VLAI?
Summary
strongSwan 5.0.2 through 5.1.0 allows remote attackers to cause a denial of service (NULL pointer dereference and charon daemon crash) via a crafted IKEv1 fragmentation packet.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
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CVE-2013-6075 (GCVE-0-2013-6075)
Vulnerability from cvelistv5 – Published: 2013-11-02 18:00 – Updated: 2024-09-16 22:52
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
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CVE-2013-5018 (GCVE-0-2013-5018)
Vulnerability from cvelistv5 – Published: 2013-08-28 17:18 – Updated: 2024-08-06 16:59
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2013-2054 (GCVE-0-2013-2054)
Vulnerability from cvelistv5 – Published: 2013-07-09 17:00 – Updated: 2024-08-06 15:20
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2013-2944 (GCVE-0-2013-2944)
Vulnerability from cvelistv5 – Published: 2013-05-02 14:00 – Updated: 2024-08-06 15:52
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2012-2388 (GCVE-0-2012-2388)
Vulnerability from cvelistv5 – Published: 2012-06-27 21:00 – Updated: 2024-08-06 19:34
VLAI?
Summary
The GMP Plugin in strongSwan 4.2.0 through 4.6.3 allows remote attackers to bypass authentication via a (1) empty or (2) zeroed RSA signature, aka "RSA signature verification vulnerability."
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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