CVE-2018-16151
First published: Wed Sep 26 2018(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Strongswan Strongswan | >=4.0.0<=4.6.4 | |
| Strongswan Strongswan | >=5.0.0<5.7.0 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| debian/strongswan | 5.9.1-1+deb11u4 5.9.8-5+deb12u1 5.9.13-2 |
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Reference Links
- 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
- https://lists.debian.org/debian-lts-announce/2018/09/msg00032.html
- https://security.gentoo.org/glsa/201811-16
- https://usn.ubuntu.com/3771-1/
- https://www.debian.org/security/2018/dsa-4305
- https://www.strongswan.org/blog/2018/09/24/strongswan-vulnerability-(cve-2018-16151,-cve-2018-16152).html
- https://www.strongswan.org/blog/2018/09/24/strongswan-vulnerability-%28cve-2018-16151,-cve-2018-16152%29.html
- https://launchpad.net/bugs/cve/CVE-2018-16151
- https://www.strongswan.org/blog/2018/09/24/strongswan-vulnerability-%28cve-2018-16151%2C-cve-2018-16152%29.html
- https://strongswan.org/blog/2018/09/24/strongswan-vulnerability-(cve-2018-16151,-cve-2018-16152).html
- https://security-tracker.debian.org/tracker/CVE-2018-16151
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16151
- https://nvd.nist.gov/vuln/detail/CVE-2018-16151
- https://ubuntu.com/security/CVE-2018-16151
Frequently Asked Questions
What is CVE-2018-16151?
CVE-2018-16151 is a vulnerability in the gmp plugin in strongSwan 4.x and 5.x before 5.7.0 that allows for excess data after the encoded algorithm OID during PKCS#1 v1.5 signature verification.
How severe is CVE-2018-16151?
CVE-2018-16151 has a severity level of 7.5 (High).
Which versions of strongSwan are affected by CVE-2018-16151?
strongSwan versions 4.x and 5.x before 5.7.0 are affected by CVE-2018-16151.
How can I fix CVE-2018-16151?
To fix CVE-2018-16151, update to strongSwan version 5.7.0 or later.
Where can I find more information about CVE-2018-16151?
You can find more information about CVE-2018-16151 at the following references: [1] [2] [3].
- collector/nvd-index
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- collector/launchpad-cve
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- collector/nvd-cve
- source/NVD
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- canonical/strongswan strongswan
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- version/strongswan strongswan/4.6.4
- version/strongswan strongswan/5.0.0
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- version/canonical ubuntu linux/18.04
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