CVE-2018-16152

Impact:
Moderate
Public Date:
2018-09-24
CWE:
CWE-592
Bugzilla:
1635870: CVE-2018-16152 strongswan: authentication bypass in verify_emsa_pkcs1_signature() in gmp_rsa_public_key.c

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2018-16152 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v3 metrics

NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.

CVSS3 Base Score 5.6
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Impact Low
Availability Impact Low

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 7 strongimcv Under investigation

Last Modified

CVE description copyright © 2017, The MITRE Corporation

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