JUNOS IPv6 denial of service

junos-ipv6-dos (27654) The risk level is classified as MediumMedium Risk

Description:

Multiple Juniper devices running certain versions of JUNOS are vulnerable to a denial of service, caused by a kernel memory leak when processing IPv6 packets. A remote attacker exploit this vulnerability by sending specially-crafted IPv6 packets to consume all available kernel memory resources and cause the router to crash.

*CVSS:

Base Score: 3.5
  Access Vector: Remote
  Access Complexity: Low
  Authentication: Not Required
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Partial
 
Temporal Score: 2.6
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Refer to Juniper Security Alert EXT-PSN-2006-06-017 for upgrade information. See References.

References:

  • Juniper Networks, Inc. Web site: JUNOS.
  • Juniper Security Alert EXT-PSN-2006-06-017: Certain crafted IPv6 packets cause the kernel to "leak" memory and eventually crash (CERT/CC VU#294036).
  • BID-18930: Juniper Networks JUNOS IPv6 Packet Processing Remote Denial of Service Vulnerability
  • CVE-2006-3529: Memory leak in Juniper JUNOS 6.4 through 8.0, built before May 10, 2006, allows remote attackers to cause a denial of service (kernel packet memory consumption and crash) via crafted IPv6 packets whose buffers are not released after they are processed.
  • OSVDB ID: 27132: Juniper Networks JUNOS IPv6 Packet Handling Memory Consumption DoS
  • SA21003: Juniper Networks JUNOS IPv6 Packet Handling Denial of Service
  • SECTRACK ID: 1016460: JUNOS Memory Leak in Processing IPv6 Packets Lets Remote Users Crash the Router
  • US-CERT VU#294036: Juniper JUNOS IPv6 denial-of-service vulnerability
  • VUPEN/ADV-2006-2742: Juniper Networks JUNOS IPv6 Packets Handling Remote Denial of Service Vulnerability

Platforms Affected:

  • Juniper JUNOS 6.4
  • Juniper JUNOS 6.5
  • Juniper JUNOS 6.6
  • Juniper JUNOS 6.7
  • Juniper JUNOS 6.8
  • Juniper JUNOS 6.9
  • Juniper JUNOS 7.0
  • Juniper JUNOS 7.1
  • Juniper JUNOS 7.2
  • Juniper JUNOS 7.3
  • Juniper JUNOS 7.4
  • Juniper JUNOS 7.5
  • Juniper JUNOS 7.6
  • Juniper JUNOS 7.7
  • Juniper JUNOS 7.8
  • Juniper JUNOS 7.9
  • Juniper JUNOS 8.0

Reported:

Jul 10, 2006

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