# CVE-2018-16152: charon-cmd: 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, th... CVE-2018-16152 is fixed in 20 products on 1 platform, first by charon-cmd 5.6.2-1ubuntu2.2, released September 24, 2018. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2018-16152 - Priority: Routine - CVSS: n/a (Medium) - EPSS: 0.0189 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Sep 24, 2018 ## 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 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. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | charon-cmd Ubuntu 18.04.6 LTS (bionic) | 5.6.2-1ubuntu2.2 | [charon-cmd 5.6.2-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-charon-cmd-5.6.2-1ubuntu2.2.md) | Sep 24, 2018 | | Linux | charon-systemd Ubuntu 18.04.6 LTS (bionic) | 5.6.2-1ubuntu2.2 | [charon-systemd 5.6.2-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-charon-systemd-5.6.2-1ubuntu2.2.md) | Sep 24, 2018 | | Linux | libcharon-extra-plugins Ubuntu 18.04.6 LTS (bionic) | 5.6.2-1ubuntu2.2 | [libcharon-extra-plugins 5.6.2-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libcharon-extra-plugins-5.6.2-1ubuntu2.2.md) | Sep 24, 2018 | | Linux | libcharon-standard-plugins Ubuntu 18.04.6 LTS (bionic) | 5.6.2-1ubuntu2.2 | [libcharon-standard-plugins 5.6.2-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libcharon-standard-plugins-5.6.2-1ubuntu2.2.md) | Sep 24, 2018 | | Linux | libstrongswan Ubuntu 18.04.6 LTS (bionic) | 5.6.2-1ubuntu2.2 | [libstrongswan 5.6.2-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libstrongswan-5.6.2-1ubuntu2.2.md) | Sep 24, 2018 | | Linux | libstrongswan-extra-plugins Ubuntu 18.04.6 LTS (bionic) | 5.6.2-1ubuntu2.2 | [libstrongswan-extra-plugins 5.6.2-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libstrongswan-extra-plugins-5.6.2-1ubuntu2.2.md) | Sep 24, 2018 | | Linux | libstrongswan-standard-plugins Ubuntu 18.04.6 LTS (bionic) | 5.6.2-1ubuntu2.2 | [libstrongswan-standard-plugins 5.6.2-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libstrongswan-standard-plugins-5.6.2-1ubuntu2.2.md) | Sep 24, 2018 | | Linux | strongswan Ubuntu 18.04.6 LTS (bionic) | 5.6.2-1ubuntu2.2 | [strongswan 5.6.2-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-strongswan-5.6.2-1ubuntu2.2.md) | Sep 24, 2018 | | Linux | strongswan-charon Ubuntu 18.04.6 LTS (bionic) | 5.6.2-1ubuntu2.2 | [strongswan-charon 5.6.2-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-strongswan-charon-5.6.2-1ubuntu2.2.md) | Sep 24, 2018 | | Linux | strongswan-libcharon Ubuntu 18.04.6 LTS (bionic) | 5.6.2-1ubuntu2.2 | [strongswan-libcharon 5.6.2-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-strongswan-libcharon-5.6.2-1ubuntu2.2.md) | Sep 24, 2018 | | Linux | strongswan-nm Ubuntu 18.04.6 LTS (bionic) | 5.6.2-1ubuntu2.2 | [strongswan-nm 5.6.2-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-strongswan-nm-5.6.2-1ubuntu2.2.md) | Sep 24, 2018 | | Linux | strongswan-pki Ubuntu 18.04.6 LTS (bionic) | 5.6.2-1ubuntu2.2 | [strongswan-pki 5.6.2-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-strongswan-pki-5.6.2-1ubuntu2.2.md) | Sep 24, 2018 | | Linux | strongswan-scepclient Ubuntu 18.04.6 LTS (bionic) | 5.6.2-1ubuntu2.2 | [strongswan-scepclient 5.6.2-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-strongswan-scepclient-5.6.2-1ubuntu2.2.md) | Sep 24, 2018 | | Linux | strongswan-starter Ubuntu 18.04.6 LTS (bionic) | 5.6.2-1ubuntu2.2 | [strongswan-starter 5.6.2-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-strongswan-starter-5.6.2-1ubuntu2.2.md) | Sep 24, 2018 | | Linux | strongswan-swanctl Ubuntu 18.04.6 LTS (bionic) | 5.6.2-1ubuntu2.2 | [strongswan-swanctl 5.6.2-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-strongswan-swanctl-5.6.2-1ubuntu2.2.md) | Sep 24, 2018 | | Linux | strongswan-tnc-base Ubuntu 18.04.6 LTS (bionic) | 5.6.2-1ubuntu2.2 | [strongswan-tnc-base 5.6.2-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-strongswan-tnc-base-5.6.2-1ubuntu2.2.md) | Sep 24, 2018 | | Linux | strongswan-tnc-client Ubuntu 18.04.6 LTS (bionic) | 5.6.2-1ubuntu2.2 | [strongswan-tnc-client 5.6.2-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-strongswan-tnc-client-5.6.2-1ubuntu2.2.md) | Sep 24, 2018 | | Linux | strongswan-tnc-ifmap Ubuntu 18.04.6 LTS (bionic) | 5.6.2-1ubuntu2.2 | [strongswan-tnc-ifmap 5.6.2-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-strongswan-tnc-ifmap-5.6.2-1ubuntu2.2.md) | Sep 24, 2018 | | Linux | strongswan-tnc-pdp Ubuntu 18.04.6 LTS (bionic) | 5.6.2-1ubuntu2.2 | [strongswan-tnc-pdp 5.6.2-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-strongswan-tnc-pdp-5.6.2-1ubuntu2.2.md) | Sep 24, 2018 | | Linux | strongswan-tnc-server Ubuntu 18.04.6 LTS (bionic) | 5.6.2-1ubuntu2.2 | [strongswan-tnc-server 5.6.2-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-strongswan-tnc-server-5.6.2-1ubuntu2.2.md) | Sep 24, 2018 | --- Data as of 2026-11-12T01:51:14Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.