CVE-2018-16151

Name
CVE-2018-16151
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.
NVD Severity
medium
Other trackers
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

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

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:* strongswan >= 5.0.0 < 5.7.0
cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:* strongswan >= 4.0.0 <= 4.6.4

Vulnerable and fixed packages

Source package Branch Version Maintainer Status