Vulnerability Monitor

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CVE-2016-4921

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.

Published

2017-10-13T17:29:00.270

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

6.9

Weaknesses
  • Type: Primary
    CWE-399
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System juniper junos 11.4 Yes
Operating System juniper junos 11.4 Yes
Operating System juniper junos 11.4 Yes
Operating System juniper junos 11.4 Yes
Operating System juniper junos 11.4 Yes
Operating System juniper junos 11.4 Yes
Operating System juniper junos 11.4 Yes
Operating System juniper junos 11.4 Yes
Operating System juniper junos 11.4 Yes
Operating System juniper junos 11.4 Yes
Operating System juniper junos 11.4 Yes
Operating System juniper junos 11.4 Yes
Operating System juniper junos 11.4 Yes
Operating System juniper junos 11.4r13 Yes
Operating System juniper junos 12.3 Yes
Operating System juniper junos 12.3 Yes
Operating System juniper junos 12.3 Yes
Operating System juniper junos 12.3 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 12.3x48 Yes
Operating System juniper junos 13.3 Yes
Operating System juniper junos 13.3 Yes
Operating System juniper junos 13.3 Yes
Operating System juniper junos 13.3 Yes
Operating System juniper junos 13.3 Yes
Operating System juniper junos 13.3 Yes
Operating System juniper junos 13.3 Yes
Operating System juniper junos 13.3 Yes
Operating System juniper junos 13.3 Yes
Operating System juniper junos 13.3 Yes
Operating System juniper junos 13.3 Yes
Operating System juniper junos 13.3 Yes
Operating System juniper junos 14.1 Yes
Operating System juniper junos 14.1 Yes
Operating System juniper junos 14.1 Yes
Operating System juniper junos 14.1 Yes
Operating System juniper junos 14.1 Yes
Operating System juniper junos 14.1x53 Yes
Operating System juniper junos 14.1x53 Yes
Operating System juniper junos 14.1x53 Yes
Operating System juniper junos 14.1x53 Yes
Operating System juniper junos 14.1x53 Yes
Operating System juniper junos 14.1x53 Yes
Operating System juniper junos 14.1x55 Yes
Operating System juniper junos 14.1x55 Yes
Operating System juniper junos 14.2 Yes
Operating System juniper junos 14.2 Yes
Operating System juniper junos 14.2 Yes
Operating System juniper junos 14.2 Yes
Operating System juniper junos 14.2 Yes
Operating System juniper junos 15.1 Yes
Operating System juniper junos 15.1 Yes
Operating System juniper junos 15.1 Yes
Operating System juniper junos 15.1 Yes
Operating System juniper junos 15.1 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x49 Yes
Operating System juniper junos 15.1x53 Yes
Operating System juniper junos 15.1x53 Yes
Operating System juniper junos 15.1x53 Yes
Operating System juniper junos 15.1x53 Yes
Operating System juniper junos 15.1x53 Yes
Operating System juniper junos 15.1x53 Yes
Operating System juniper junos 15.1x53 Yes
Operating System juniper junos 15.1x53 Yes
Operating System juniper junos 15.1x53 Yes
Operating System juniper junos 15.1x53 Yes
Operating System juniper junos 15.1x53 Yes
References