CVE-2016-4921
Juniper Networks Junos OS IPv6 Resource Exhaustion Vulnerability
Description
By flooding a Juniper Networks router running Junos OS with specially crafted IPv6 traffic, all available resources can be consumed, leading to the inability to store next hop information for legitimate traffic. In extreme cases, the crafted IPv6 traffic may result in a total resource exhaustion and kernel panic. The issue is triggered by traffic destined to the router. Transit traffic does not trigger the vulnerability. This issue only affects devices with IPv6 enabled and configured. Devices not configured to process IPv6 traffic are unaffected by this vulnerability. This issue was found during internal product security testing. Juniper SIRT is not aware of any malicious exploitation of this vulnerability. Affected releases are Juniper Networks Junos OS 11.4 prior to 11.4R13-S3; 12.3 prior to 12.3R3-S4; 12.3X48 prior to 12.3X48-D30; 13.3 prior to 13.3R10, 13.3R4-S11; 14.1 prior to 14.1R2-S8, 14.1R4-S12, 14.1R8; 14.1X53 prior to 14.1X53-D28, 14.1X53-D40; 14.1X55 prior to 14.1X55-D35; 14.2 prior to 14.2R3-S10, 14.2R4-S7, 14.2R6; 15.1 prior to 15.1F2-S5, 15.1F5-S2, 15.1F6, 15.1R3; 15.1X49 prior to 15.1X49-D40; 15.1X53 prior to 15.1X53-D57, 15.1X53-D70.
INFO
Published Date :
Oct. 13, 2017, 5:29 p.m.
Last Modified :
Oct. 9, 2019, 11:18 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
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-2016-4921.
| URL | Resource |
|---|---|
| http://www.securityfocus.com/bid/93532 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1037014 | Third Party Advisory VDB Entry |
| https://kb.juniper.net/JSA10762 | Vendor Advisory |
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-2016-4921 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2016-4921 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 [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Oct. 09, 2019
Action Type Old Value New Value Added CVSS V3 Juniper Networks, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H -
Initial Analysis by [email protected]
Nov. 03, 2017
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:C) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://kb.juniper.net/JSA10762 No Types Assigned https://kb.juniper.net/JSA10762 Vendor Advisory Changed Reference Type http://www.securitytracker.com/id/1037014 No Types Assigned http://www.securitytracker.com/id/1037014 Third Party Advisory, VDB Entry Changed Reference Type http://www.securityfocus.com/bid/93532 No Types Assigned http://www.securityfocus.com/bid/93532 Third Party Advisory, VDB Entry Added CWE CWE-399 Added CPE Configuration OR *cpe:2.3:o:juniper:junos:11.4:*:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:11.4:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:11.4:r10:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:11.4:r11:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:11.4:r12:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:11.4:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:11.4:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:11.4:r4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:11.4:r5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:11.4:r6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:11.4:r7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:11.4:r8:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:11.4:r9:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:11.4r13:s2:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:juniper:junos:12.3:*:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3x48:d10:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3x48:d15:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3x48:d25:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:juniper:junos:13.3:*:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:13.3:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:13.3:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:13.3:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:13.3:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:13.3:r4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:13.3:r4-s11:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:13.3:r5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:13.3:r6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:13.3:r7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:13.3:r8:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:13.3:r9:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:juniper:junos:14.1:*:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.1:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.1:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.1:r4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.1:r8:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.1x53:d15:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.1x53:d16:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.1x53:d25:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.1x53:d26:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.1x53:d27:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.1x53:d40:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.1x55:*:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.1x55:d30:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:juniper:junos:14.2:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.2:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.2:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.2:r4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.2:r6:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:juniper:junos:15.1:f1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d10:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d20:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d30:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d35:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d20:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d21:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d25:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d30:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d32:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d33:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d34:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d50:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d51:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d52:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d55:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 15, 2017
Action Type Old Value New Value Added Reference http://www.securitytracker.com/id/1037014 [No Types Assigned] Added Reference http://www.securityfocus.com/bid/93532 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2016-4921 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-2016-4921
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.31 }} -0.06%
score
0.65867
percentile