CVE-2018-16151

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.

Link	Resource
https://www.strongswan.org/blog/2018/09/24/strongswan-vulnerability-(cve-2018-16151,-cve-2018-16152).html	Mitigation Patch
https://www.debian.org/security/2018/dsa-4305	Third Party Advisory
https://usn.ubuntu.com/3771-1/	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00032.html	Mailing List Third Party Advisory
https://security.gentoo.org/glsa/201811-16	Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00077.html
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00001.html
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00047.html

Configuration 1

cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:* cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

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Published : 2018-09-26 09:29

Updated : 2019-12-01 01:15

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NVD link : CVE-2018-16151

Mitre link : CVE-2018-16151

No products.

CWE-347

Improper Verification of Cryptographic Signature