Executive Summary
| Summary | |
|---|---|
| Title | strongswan security update |
| Informations | |||
|---|---|---|---|
| Name | DSA-4305 | First vendor Publication | 2018-09-24 |
| Vendor | Debian | Last vendor Modification | 2018-09-24 |
| Severity (Vendor) | N/A | Revision | 1 |
Security-Database Scoring CVSS v3
| Cvss vector : N/A | |||
|---|---|---|---|
| Overall CVSS Score | NA | ||
| Base Score | NA | Environmental Score | NA |
| impact SubScore | NA | Temporal Score | NA |
| Exploitabality Sub Score | NA | ||
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:N/AC:L/Au:N/C:N/I:P/A:N) | |||
|---|---|---|---|
| Cvss Base Score | 5 | Attack Range | Network |
| Cvss Impact Score | 2.9 | Attack Complexity | Low |
| Cvss Expoit Score | 10 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| 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. Problems in the parsing and verification of RSA signatures could lead to a Bleichenbacher-style low-exponent signature forgery in certificates and during IKE authentication. While the gmp plugin doesn't allow arbitrary data after the ASN.1 structure (the original Bleichenbacher attack), the ASN.1 parser is not strict enough and allows data in specific fields inside the ASN.1 structure. Only installations using the gmp plugin are affected (on Debian OpenSSL plugin has priority over GMP one for RSA operations), and only when using keys and certificates (including ones from CAs) using keys with an exponent e = 3, which is usually rare in practice. CVE-2018-16151 The OID parser in the ASN.1 code in gmp allows any number of random bytes after a valid OID. CVE-2018-16152 The algorithmIdentifier parser in the ASN.1 code in gmp doesn't enforce a NULL value for the optional parameter which is not used with any PKCS#1 algorithm. For the stable distribution (stretch), these problems have been fixed in version 5.5.1-4+deb9u3. We recommend that you upgrade your strongswan packages. For the detailed security status of strongswan please refer to its security tracker page at: https://security-tracker.debian.org/tracker/strongswan |
Original Source
| Url : http://www.debian.org/security/2018/dsa-4305 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-347 | Improper Verification of Cryptographic Signature |
CPE : Common Platform Enumeration
Nessus® Vulnerability Scanner
| Date | Description |
|---|---|
| 2019-01-03 | Name : The remote Fedora host is missing a security update. File : fedora_2018-61df554bb1.nasl - Type : ACT_GATHER_INFO |
| 2019-01-03 | Name : The remote Fedora host is missing a security update. File : fedora_2018-a0d22c2a21.nasl - Type : ACT_GATHER_INFO |
| 2018-11-27 | Name : The remote Gentoo host is missing one or more security-related patches. File : gentoo_GLSA-201811-16.nasl - Type : ACT_GATHER_INFO |
| 2018-10-16 | Name : The remote Fedora host is missing a security update. File : fedora_2018-9caa6528d2.nasl - Type : ACT_GATHER_INFO |
| 2018-10-03 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-4309.nasl - Type : ACT_GATHER_INFO |
| 2018-09-27 | Name : The remote Debian host is missing a security update. File : debian_DLA-1522.nasl - Type : ACT_GATHER_INFO |
| 2018-09-25 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-4305.nasl - Type : ACT_GATHER_INFO |
Alert History
| Date | Informations |
|---|---|
| 2018-12-19 21:21:59 |
|
| 2018-11-27 17:22:29 |
|
| 2018-09-27 17:21:32 |
|
| 2018-09-24 17:19:53 |
|
