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VULNERABILITIES

CVE-2018-16151 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CNA: CISA-ADPCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00077.html CVE
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00001.html CVE
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00047.html CVE
https://lists.debian.org/debian-lts-announce/2018/09/msg00032.html CVEMailing ListThird Party Advisory
https://security.gentoo.org/glsa/201811-16 CVEThird Party Advisory

see all 16 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-347Improper Verification of Cryptographic Signature[email protected]
CWE-347Improper Verification of Cryptographic SignatureCISA-ADP

Affected Products

ProductVersions
strongswan strongswan
>= 4.0.0, <= 4.6.4
>= 5.0.0, < 5.7.0

CPE

  • cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
debian debian linux
8.0
9.0

CPE

  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
canonical ubuntu linux
14.04
16.04
18.04

CPE

  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

Remediation

  • No remediation found in references.

Change History

12 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2018-16151
NVD Published Date:
Sep 26, 2018
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2018-16151 Details - Not Deferred