Cisco IOS IPv6 Type 0 routing header denial of service

cisco-ios-ipv6-type0-dos (31715) The risk level is classified as MediumMedium Risk

Description:

Cisco devices running certain versions of Cisco Internetworking Operating System Software (IOS) with IPv6 enabled are vulnerable to a denial of service attack, caused by improper handling of certain IPv6 packets. By sending an IPv6 packet containing a specially-crafted Type 0 routing header, a remote attacker could corrupt memory and cause the affected device to crash. It may also be possible to exploit this vulnerability to execute arbitrary code on the affected device.

*CVSS:

Base Score: 6.8
  Access Vector: Remote
  Access Complexity: Low
  Authentication: Not Required
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: Complete
 
Temporal Score: 5
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Refer to cisco-sa-20070124-IOS-IPv6 for upgrade or suggested workaround information. See References.

References:

  • cisco-sa-20070124-IOS-IPv6: Cisco Security Advisory: IPv6 Routing Header Vulnerability.
  • BID-22210: Cisco IOS IPv6 Source Routing Remote Memory Corruption Vulnerability
  • CVE-2007-0481: Cisco IOS allows remote attackers to cause a denial of service (crash) via a crafted IPv6 Type 0 Routing header.
  • OSVDB ID: 32091: Cisco IOS Crafted IPv6 Type 0 Routing Header DoS
  • SA23867: Cisco IOS Multiple Vulnerabilities
  • SECTRACK ID: 1017550: Cisco IOS IPv6 Type 0 Routing Header Bug Lets Remote Users Deny Service
  • US-CERT VU#274760: Cisco IOS fails to properly process specially crafted IPv6 packets

Platforms Affected:

  • Cisco IOS 12.0S
  • Cisco IOS 12.0ST
  • Cisco IOS 12.0SX
  • Cisco IOS 12.0SY
  • Cisco IOS 12.0SZ
  • Cisco IOS 12.1XU
  • Cisco IOS 12.1XV
  • Cisco IOS 12.1YB
  • Cisco IOS 12.1YC
  • Cisco IOS 12.1YD
  • Cisco IOS 12.21XA
  • Cisco IOS 12.21XB
  • Cisco IOS 12.2B
  • Cisco IOS 12.2BC
  • Cisco IOS 12.2BW
  • Cisco IOS 12.2BY
  • Cisco IOS 12.2CX
  • Cisco IOS 12.2DD
  • Cisco IOS 12.2DX
  • Cisco IOS 12.2EU
  • Cisco IOS 12.2EW
  • Cisco IOS 12.2EWA
  • Cisco IOS 12.2EZ
  • Cisco IOS 12.2MC
  • Cisco IOS 12.2S
  • Cisco IOS 12.2SBC
  • Cisco IOS 12.2SEA
  • Cisco IOS 12.2SEB
  • Cisco IOS 12.2SEC
  • Cisco IOS 12.2SED
  • Cisco IOS 12.2SEE
  • Cisco IOS 12.2SEG
  • Cisco IOS 12.2SG
  • Cisco IOS 12.2SU
  • Cisco IOS 12.2SV
  • Cisco IOS 12.2SW
  • Cisco IOS 12.2SX
  • Cisco IOS 12.2SXA
  • Cisco IOS 12.2SXB
  • Cisco IOS 12.2SXD
  • Cisco IOS 12.2SXE
  • Cisco IOS 12.2SXF
  • Cisco IOS 12.2SY
  • Cisco IOS 12.2SZ
  • Cisco IOS 12.2T
  • Cisco IOS 12.2TPC
  • Cisco IOS 12.2XA
  • Cisco IOS 12.2XB
  • Cisco IOS 12.2XC
  • Cisco IOS 12.2XD
  • Cisco IOS 12.2XF
  • Cisco IOS 12.2XG
  • Cisco IOS 12.2XH
  • Cisco IOS 12.2XI
  • Cisco IOS 12.2XJ
  • Cisco IOS 12.2XK
  • Cisco IOS 12.2XL
  • Cisco IOS 12.2XM
  • Cisco IOS 12.2XN
  • Cisco IOS 12.2XQ
  • Cisco IOS 12.2XS
  • Cisco IOS 12.2XU
  • Cisco IOS 12.2XV
  • Cisco IOS 12.2XW
  • Cisco IOS 12.2YA
  • Cisco IOS 12.2YB
  • Cisco IOS 12.2YD
  • Cisco IOS 12.2YE
  • Cisco IOS 12.2YF
  • Cisco IOS 12.2YH
  • Cisco IOS 12.2YJ
  • Cisco IOS 12.2YL
  • Cisco IOS 12.2YM
  • Cisco IOS 12.2YN
  • Cisco IOS 12.2YQ
  • Cisco IOS 12.2YR
  • Cisco IOS 12.2YT
  • Cisco IOS 12.2YU
  • Cisco IOS 12.2YV
  • Cisco IOS 12.2YW
  • Cisco IOS 12.2YX
  • Cisco IOS 12.2YY
  • Cisco IOS 12.2YZ
  • Cisco IOS 12.2ZA
  • Cisco IOS 12.2ZB
  • Cisco IOS 12.2ZD
  • Cisco IOS 12.2ZE
  • Cisco IOS 12.2ZF
  • Cisco IOS 12.2ZH
  • Cisco IOS 12.2ZJ
  • Cisco IOS 12.2ZL
  • Cisco IOS 12.2ZN
  • Cisco IOS 12.3
  • Cisco IOS 12.3B
  • Cisco IOS 12.3BC
  • Cisco IOS 12.3BW
  • Cisco IOS 12.3JEA
  • Cisco IOS 12.3JEB
  • Cisco IOS 12.3T
  • Cisco IOS 12.3XA
  • Cisco IOS 12.3XB
  • Cisco IOS 12.3XC
  • Cisco IOS 12.3XD
  • Cisco IOS 12.3XE
  • Cisco IOS 12.3XF
  • Cisco IOS 12.3XG
  • Cisco IOS 12.3XH
  • Cisco IOS 12.3XI
  • Cisco IOS 12.3XJ
  • Cisco IOS 12.3XK
  • Cisco IOS 12.3XQ
  • Cisco IOS 12.3XR
  • Cisco IOS 12.3XS
  • Cisco IOS 12.3XU
  • Cisco IOS 12.3XW
  • Cisco IOS 12.3XX
  • Cisco IOS 12.3YA
  • Cisco IOS 12.3YD
  • Cisco IOS 12.3YF
  • Cisco IOS 12.3YG
  • Cisco IOS 12.3YH
  • Cisco IOS 12.3YI
  • Cisco IOS 12.3YJ
  • Cisco IOS 12.3YK
  • Cisco IOS 12.3YM
  • Cisco IOS 12.3YQ
  • Cisco IOS 12.3YS
  • Cisco IOS 12.3YT
  • Cisco IOS 12.3YU
  • Cisco IOS 12.3YX
  • Cisco IOS 12.3YZ
  • Cisco IOS 12.4SW
  • Cisco IOS 12.4T
  • Cisco IOS 12.4XA
  • Cisco IOS 12.4XB
  • Cisco IOS 12.4XC
  • Cisco IOS 12.4XD
  • Cisco IOS 12.4XE
  • Cisco IOS 12.4XG
  • Cisco IOS 12.4XJ
  • Cisco IOS 12.4XP
  • Cisco IOS 12.4XT

Reported:

Jan 24, 2007

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