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CVE-2018-16152

Status Candidate

Overview

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.

Related Files

Gentoo Linux Security Advisory 201811-16
Posted Nov 27, 2018
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201811-16 - Multiple vulnerabilities have been found in strongSwan, the worst of which could lead to a Denial of Service condition. Versions less than 5.7.1 are affected.

tags | advisory, denial of service, vulnerability
systems | linux, gentoo
advisories | CVE-2018-10811, CVE-2018-16151, CVE-2018-16152, CVE-2018-17540, CVE-2018-5388, CVE-2018-6459
MD5 | f0812b132a970063b6aa457aa950cf4f
Ubuntu Security Notice USN-3771-1
Posted Sep 25, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3771-1 - It was discovered that strongSwan incorrectly handled IKEv2 key derivation. A remote attacker could possibly use this issue to cause strongSwan to crash, resulting in a denial of service. Sze Yiu Chau discovered that strongSwan incorrectly handled parsing OIDs in the gmp plugin. A remote attacker could possibly use this issue to bypass authorization. Sze Yiu Chau discovered that strongSwan incorrectly handled certain parameters fields in the gmp plugin. A remote attacker could possibly use this issue to bypass authorization. Various other issues were also addressed.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2018-10811, CVE-2018-16151, CVE-2018-16152, CVE-2018-5388
MD5 | 9001203f492021c8d0cda7a835f220ec
Debian Security Advisory 4305-1
Posted Sep 25, 2018
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4305-1 - Sze Yiu Chau and his team from Purdue University and The University of Iowa found several issues in the gmp plugin for strongSwan, an IKE/IPsec suite.

tags | advisory
systems | linux, debian
advisories | CVE-2018-16151, CVE-2018-16152
MD5 | 351133820347311bee2ed0389ae3a551
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