In verify_emsa_pkcs1_signature() in gmp_rsa_public_key.c in the gmp plugin in strongSwan 4.x and 5.x prior to 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.
Vulnerable Product | Search on Vulmon | Subscribe to Product |
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strongswan strongswan |
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debian debian linux 8.0 |
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debian debian linux 9.0 |
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canonical ubuntu linux 16.04 |
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canonical ubuntu linux 14.04 |
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canonical ubuntu linux 18.04 |