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Improper Verification of Cryptographic Signature The advisory has been revoked - it doesn't affect any version of package strongswan-mysql  (opens in a new tab)

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EPSS
1.89% (79th percentile)

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  • Snyk IDSNYK-SLES151-STRONGSWANMYSQL-2723730
  • published14 Apr 2022
  • disclosed25 Nov 2019
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Introduced: 25 Nov 2019

CVE-2018-16151  (opens in a new tab)
CWE-347  (opens in a new tab)

Amendment

The SLES security team deemed this advisory irrelevant for SLES:15.1.

NVD Description

Note: Versions mentioned in the description apply only to the upstream strongswan-mysql package and not the strongswan-mysql package as distributed by SLES.

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.