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.
Risk Information
Base Score
7.5
MODERATE
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS Score
Exploitation Probability
1.69
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| IPsec VPN solution (USN-3771-1) strongswan_5.3.5-1ubuntu3.7_all.deb | Linux |
| IPsec VPN solution (USN-3771-1) strongswan_5.6.2-1ubuntu2.2_all.deb | Linux |
| IPsec VPN solution (USN-3771-1) strongswan_5.1.2-0ubuntu2.10_all.deb | Linux |
| IPsec VPN solution (USN-3771-1) libstrongswan_5.3.5-1ubuntu3.7_i386.deb | Linux |
| IPsec VPN solution (USN-3771-1) libstrongswan_5.3.5-1ubuntu3.7_amd64.deb | Linux |
| IPsec VPN solution (USN-3771-1) libstrongswan_5.6.2-1ubuntu2.2_i386.deb | Linux |
| IPsec VPN solution (USN-3771-1) libstrongswan_5.6.2-1ubuntu2.2_amd64.deb | Linux |
| IPsec VPN solution (USN-3771-1) libstrongswan_5.1.2-0ubuntu2.10_i386.deb | Linux |
| IPsec VPN solution (USN-3771-1) libstrongswan_5.1.2-0ubuntu2.10_amd64.deb | Linux |
| strongswan security update(DSA-4305-1) strongswan_5.5.1-4+deb9u3_all.deb | Linux |
Patch Details
No records foundReferences
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234