CVE-2016-5361
Libreswan IKEv1 UDP Amplification Denial of Service Vulnerability
Description
programs/pluto/ikev1.c in libreswan before 3.17 retransmits in initial-responder states, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed UDP packet. NOTE: the original behavior complies with the IKEv1 protocol, but has a required security update from the libreswan vendor; as of 2016-06-10, it is expected that several other IKEv1 implementations will have vendor-required security updates, with separate CVE IDs assigned to each.
INFO
Published Date :
June 16, 2016, 2:59 p.m.
Last Modified :
April 12, 2025, 10:46 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source | 
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.0 | HIGH | [email protected] | 
Solution
- Update the affected Libreswan package.
- Update the Libreswan-debuginfo package if applicable.
References to Advisories, Solutions, and Tools
                                            Here, you will find a curated list of external links that provide in-depth
                                            information, practical solutions, and valuable tools related to
                                            CVE-2016-5361.
                                        
CWE - Common Weakness Enumeration
            While CVE identifies
            specific instances of vulnerabilities, CWE categorizes the common flaws or
            weaknesses that can lead to vulnerabilities. CVE-2016-5361 is
            associated with the following CWEs:
        
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
            (CAPEC)
            stores attack patterns, which are descriptions of the common attributes and
            approaches employed by adversaries to exploit the CVE-2016-5361
            weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
			The following list is the news that have been mention
			CVE-2016-5361 vulnerability anywhere in the article.
		
                The following table lists the changes that have been made to the
                CVE-2016-5361 vulnerability over time.
            
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
- 
                            CVE Modified by af854a3a-2127-422b-91ae-364da2661108Nov. 21, 2024 Action Type Old Value New Value Added Reference http://rhn.redhat.com/errata/RHSA-2016-2603.html Added Reference http://www.openwall.com/lists/oss-security/2016/06/10/4 Added Reference https://github.com/libreswan/libreswan/commit/152d6d95632d8b9477c170f1de99bcd86d7fb1d6 Added Reference https://lists.libreswan.org/pipermail/swan-dev/2016-March/001394.html 
- 
                            CVE Modified by [email protected]May. 14, 2024 Action Type Old Value New Value 
- 
                            CVE Modified by [email protected]Jan. 18, 2017 Action Type Old Value New Value Added Reference http://rhn.redhat.com/errata/RHSA-2016-2603.html [No Types Assigned] 
- 
                            Modified Analysis by [email protected]Jun. 20, 2016 Action Type Old Value New Value Added CPE Configuration Configuration 1 OR *cpe:2.3:a:libreswan:libreswan:3.16:*:*:*:*:*:*:* (and previous) Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/libreswan/libreswan/commit/152d6d95632d8b9477c170f1de99bcd86d7fb1d6 No Types Assigned https://github.com/libreswan/libreswan/commit/152d6d95632d8b9477c170f1de99bcd86d7fb1d6 Advisory, Patch Added CWE CWE-20 
- 
                            Initial Analysis by [email protected]Jun. 17, 2016 Action Type Old Value New Value 
Vulnerability Scoring Details
Base CVSS Score: 7.5
Base CVSS Score: 5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.95 }} -0.07%
score
0.75433
percentile
 
                         
                         
                         
                                             
                                            