Strongswan
By the Year
In 2022 there have been 1 vulnerability in Strongswan with an average score of 9.1 out of ten. Last year Strongswan had 2 security vulnerabilities published. At the current rates, it appears that the number of vulnerabilities last year and this year may equal out. However, the average CVE base score of the vulnerabilities in 2022 is greater by 1.60.
| Year | Vulnerabilities | Average Score |
|---|---|---|
| 2022 | 1 | 9.10 |
| 2021 | 2 | 7.50 |
| 2020 | 0 | 0.00 |
| 2019 | 1 | 3.10 |
| 2018 | 6 | 6.97 |
It may take a day or so for new Strongswan vulnerabilities to show up in the stats or in the list of recent security vulnerabilties. Additionally vulnerabilities may be tagged under a different product or component name.
Recent Strongswan Security Vulnerabilities
In strongSwan before 5.9.5, a malicious responder
CVE-2021-45079
9.1 - Critical
- January 31, 2022
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.
authentification
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
CVE-2021-41991
7.5 - High
- October 18, 2021
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.
Integer Overflow or Wraparound
The gmp plugin in strongSwan before 5.9.4 has a remote integer overflow via a crafted certificate with an RSASSA-PSS signature
CVE-2021-41990
7.5 - High
- October 18, 2021
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.
Integer Overflow or Wraparound
The Libreswan Project has found a vulnerability in the processing of IKEv1 informational exchange packets
CVE-2019-10155
3.1 - Low
- June 12, 2019
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.
Improper Input Validation
The gmp plugin in strongSwan before 5.7.1 has a Buffer Overflow
CVE-2018-17540
7.5 - High
- October 03, 2018
The gmp plugin in strongSwan before 5.7.1 has a Buffer Overflow via a crafted certificate.
Buffer Overflow
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
CVE-2018-16151
7.5 - High
- September 26, 2018
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.
Improper Verification of Cryptographic Signature
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
CVE-2018-16152
7.5 - High
- September 26, 2018
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.
Improper Verification of Cryptographic Signature
strongSwan 5.6.0 and older
CVE-2018-10811
7.5 - High
- June 19, 2018
strongSwan 5.6.0 and older allows Remote Denial of Service because of Missing Initialization of a Variable.
Missing Initialization of Resource
In stroke_socket.c in strongSwan before 5.6.3, a missing packet length check could
CVE-2018-5388
6.5 - Medium
- May 31, 2018
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.
Memory Corruption
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
CVE-2018-6459
5.3 - Medium
- February 20, 2018
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.
Improper Verification of Cryptographic Signature
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