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  3. Cisco IOS OSPF Neighbor Buffer Overflow Vulnerability

Cisco IOS OSPF Neighbor Buffer Overflow Vulnerability

Risk

High

Date Discovered

February 20, 2003

Description

Cisco IOS is prone to a remotely exploitable buffer overflow condition when handling malformed OSPF (Open Shortest Path First) packets. The overflow occurs when more than 255 OSPF neighbors are announced. This may make it possible to execute malicious instructions on a device running a vulnerable version of the software. Denial of service is also possible. This issue corresponds to Cisco Bug ID CSCdp58462.

Technologies Affected

  • Cisco IOS 11.1
  • Cisco IOS 11.1(20)AA4
  • Cisco IOS 11.1(24a)
  • Cisco IOS 11.1(24b)
  • Cisco IOS 11.1(28a)CT
  • Cisco IOS 11.1(28a)IA
  • Cisco IOS 11.1(36)CA2
  • Cisco IOS 11.1(36)CC2
  • Cisco IOS 11.1(36)CC4
  • Cisco IOS 11.1.13
  • Cisco IOS 11.1.13AA
  • Cisco IOS 11.1.13CA
  • Cisco IOS 11.1.13IA
  • Cisco IOS 11.1.15
  • Cisco IOS 11.1.15AA
  • Cisco IOS 11.1.15CA
  • Cisco IOS 11.1.15IA
  • Cisco IOS 11.1.16
  • Cisco IOS 11.1.16AA
  • Cisco IOS 11.1.16IA
  • Cisco IOS 11.1.17CC
  • Cisco IOS 11.1.17CT
  • Cisco IOS 11.1.7
  • Cisco IOS 11.1.7AA
  • Cisco IOS 11.1.7CA
  • Cisco IOS 11.1.9IA
  • Cisco IOS 11.1AA
  • Cisco IOS 11.1CA
  • Cisco IOS 11.1CC
  • Cisco IOS 11.1CT
  • Cisco IOS 11.1IA
  • Cisco IOS 11.2
  • Cisco IOS 11.2(11b)T2
  • Cisco IOS 11.2(17)
  • Cisco IOS 11.2(19)GS0.2
  • Cisco IOS 11.2(19a)GS6
  • Cisco IOS 11.2(23a)BC1
  • Cisco IOS 11.2(26)P2
  • Cisco IOS 11.2(26a)
  • Cisco IOS 11.2(26b)
  • Cisco IOS 11.2(4)
  • Cisco IOS 11.2(4)XA
  • Cisco IOS 11.2(4)XAf
  • Cisco IOS 11.2(8.9)SA6
  • Cisco IOS 11.2(9)XA
  • Cisco IOS 11.2.10
  • Cisco IOS 11.2.10BC
  • Cisco IOS 11.2.4
  • Cisco IOS 11.2.4F
  • Cisco IOS 11.2.4F1
  • Cisco IOS 11.2.8
  • Cisco IOS 11.2.8P
  • Cisco IOS 11.2.8SA1
  • Cisco IOS 11.2.8SA3
  • Cisco IOS 11.2.8SA5
  • Cisco IOS 11.2.9P
  • Cisco IOS 11.2.9XA
  • Cisco IOS 11.2BC
  • Cisco IOS 11.2F
  • Cisco IOS 11.2GS
  • Cisco IOS 11.2P
  • Cisco IOS 11.2SA
  • Cisco IOS 11.2WA3
  • Cisco IOS 11.2WA4
  • Cisco IOS 11.2XA
  • Cisco IOS 11.3
  • Cisco IOS 11.3(11b)
  • Cisco IOS 11.3(11b)T2
  • Cisco IOS 11.3(11c)
  • Cisco IOS 11.3(2)XA
  • Cisco IOS 11.3(7)DB1
  • Cisco IOS 11.3(8)DB2
  • Cisco IOS 11.3.1
  • Cisco IOS 11.3.11b
  • Cisco IOS 11.3.1ED
  • Cisco IOS 11.3.1T
  • Cisco IOS 11.3AA
  • Cisco IOS 11.3DA
  • Cisco IOS 11.3DB
  • Cisco IOS 11.3HA
  • Cisco IOS 11.3MA
  • Cisco IOS 11.3NA
  • Cisco IOS 11.3T
  • Cisco IOS 11.3WA4
  • Cisco IOS 11.3XA
  • Cisco IOS 12.0
  • Cisco IOS 12.0(10)S7
  • Cisco IOS 12.0(10)W5
  • Cisco IOS 12.0(10)W5(18f)
  • Cisco IOS 12.0(10)W5(18g)
  • Cisco IOS 12.0(10a)
  • Cisco IOS 12.0(11)S6
  • Cisco IOS 12.0(11)ST4
  • Cisco IOS 12.0(11a)
  • Cisco IOS 12.0(12)S3
  • Cisco IOS 12.0(12a)
  • Cisco IOS 12.0(13)S6
  • Cisco IOS 12.0(13)W5(19c)
  • Cisco IOS 12.0(13)WT6(1)
  • Cisco IOS 12.0(13a)
  • Cisco IOS 12.0(14)S7
  • Cisco IOS 12.0(14)ST
  • Cisco IOS 12.0(14)ST3
  • Cisco IOS 12.0(14)W5(20)
  • Cisco IOS 12.0(14a)
  • Cisco IOS 12.0(15)S3
  • Cisco IOS 12.0(15)S6
  • Cisco IOS 12.0(15a)
  • Cisco IOS 12.0(16)S8
  • Cisco IOS 12.0(16)SC3
  • Cisco IOS 12.0(16)ST1
  • Cisco IOS 12.0(16)W5(21)
  • Cisco IOS 12.0(16.06)S
  • Cisco IOS 12.0(16a)
  • Cisco IOS 12.0(17)
  • Cisco IOS 12.0(17)S
  • Cisco IOS 12.0(17)S4
  • Cisco IOS 12.0(17)SL2
  • Cisco IOS 12.0(17)SL6
  • Cisco IOS 12.0(17)ST1
  • Cisco IOS 12.0(17)ST5
  • Cisco IOS 12.0(17a)
  • Cisco IOS 12.0(18)S
  • Cisco IOS 12.0(18)S5
  • Cisco IOS 12.0(18)ST1
  • Cisco IOS 12.0(18)W5(22b)
  • Cisco IOS 12.0(18b)
  • Cisco IOS 12.0(19)S2
  • Cisco IOS 12.0(19)SL4
  • Cisco IOS 12.0(19)ST2
  • Cisco IOS 12.0(19a)
  • Cisco IOS 12.0(2)XE
  • Cisco IOS 12.0(2)XE?
  • Cisco IOS 12.0(20)SP1
  • Cisco IOS 12.0(20)ST2
  • Cisco IOS 12.0(20)SX
  • Cisco IOS 12.0(20)W5(22b)
  • Cisco IOS 12.0(20.4)SP
  • Cisco IOS 12.0(20a)
  • Cisco IOS 12.0(21)S
  • Cisco IOS 12.0(21)S1
  • Cisco IOS 12.0(21)ST
  • Cisco IOS 12.0(21)SX
  • Cisco IOS 12.0(21a)
  • Cisco IOS 12.0(2b)
  • Cisco IOS 12.0(3)
  • Cisco IOS 12.0(3d)
  • Cisco IOS 12.0(4)XE
  • Cisco IOS 12.0(4)XE1
  • Cisco IOS 12.0(4)XM
  • Cisco IOS 12.0(4)XM1
  • Cisco IOS 12.0(5)T
  • Cisco IOS 12.0(5)T1
  • Cisco IOS 12.0(5)WC 2900XL-LRE
  • Cisco IOS 12.0(5)WC2
  • Cisco IOS 12.0(5)WC2b
  • Cisco IOS 12.0(5)WC3
  • Cisco IOS 12.0(5)WC3b
  • Cisco IOS 12.0(5)WX
  • Cisco IOS 12.0(5)XE
  • Cisco IOS 12.0(5)XE?
  • Cisco IOS 12.0(5)XK
  • Cisco IOS 12.0(5)XK2
  • Cisco IOS 12.0(5)XN
  • Cisco IOS 12.0(5)XN1
  • Cisco IOS 12.0(5)XS
  • Cisco IOS 12.0(5)XS?
  • Cisco IOS 12.0(5)XU
  • Cisco IOS 12.0(5)YB4
  • Cisco IOS 12.0(5.1)XP
  • Cisco IOS 12.0(5.2)XU
  • Cisco IOS 12.0(5.3)WC1
  • Cisco IOS 12.0(5.4)WC1
  • Cisco IOS 12.0(6b)
  • Cisco IOS 12.0(7)DB2
  • Cisco IOS 12.0(7)DC1
  • Cisco IOS 12.0(7)S1
  • Cisco IOS 12.0(7)SC
  • Cisco IOS 12.0(7)T
  • Cisco IOS 12.0(7)T2
  • Cisco IOS 12.0(7)WX5(15a)
  • Cisco IOS 12.0(7)XE
  • Cisco IOS 12.0(7)XE2
  • Cisco IOS 12.0(7)XF
  • Cisco IOS 12.0(7)XF1
  • Cisco IOS 12.0(7)XK
  • Cisco IOS 12.0(7)XK3
  • Cisco IOS 12.0(7)XV
  • Cisco IOS 12.0(7.4)S
  • Cisco IOS 12.0(7a)
  • Cisco IOS 12.0(8)
  • Cisco IOS 12.0(8)S1
  • Cisco IOS 12.0(8.0.2)S
  • Cisco IOS 12.0(8.3)SC
  • Cisco IOS 12.0(8a)
  • Cisco IOS 12.0(9)
  • Cisco IOS 12.0(9)S
  • Cisco IOS 12.0(9)S8
  • Cisco IOS 12.0(9a)
  • Cisco IOS 12.0.1
  • Cisco IOS 12.0.19
  • Cisco IOS 12.0.1W
  • Cisco IOS 12.0.1XA3
  • Cisco IOS 12.0.1XB
  • Cisco IOS 12.0.1XE
  • Cisco IOS 12.0.2
  • Cisco IOS 12.0.2XC
  • Cisco IOS 12.0.2XD
  • Cisco IOS 12.0.2XF
  • Cisco IOS 12.0.2XG
  • Cisco IOS 12.0.3
  • Cisco IOS 12.0.3T2
  • Cisco IOS 12.0.4
  • Cisco IOS 12.0.4S
  • Cisco IOS 12.0.4T
  • Cisco IOS 12.0.5
  • Cisco IOS 12.0.6
  • Cisco IOS 12.0.7
  • Cisco IOS 12.0.7(T)
  • Cisco IOS 12.0DA
  • Cisco IOS 12.0DB
  • Cisco IOS 12.0DC
  • Cisco IOS 12.0S
  • Cisco IOS 12.0SC
  • Cisco IOS 12.0SL
  • Cisco IOS 12.0SP
  • Cisco IOS 12.0ST
  • Cisco IOS 12.0SX
  • Cisco IOS 12.0T
  • Cisco IOS 12.0W5
  • Cisco IOS 12.0WC
  • Cisco IOS 12.0WT
  • Cisco IOS 12.0WX
  • Cisco IOS 12.0XA
  • Cisco IOS 12.0XB
  • Cisco IOS 12.0XC
  • Cisco IOS 12.0XD
  • Cisco IOS 12.0XE
  • Cisco IOS 12.0XF
  • Cisco IOS 12.0XG
  • Cisco IOS 12.0XH
  • Cisco IOS 12.0XI
  • Cisco IOS 12.0XJ
  • Cisco IOS 12.0XK
  • Cisco IOS 12.0XL
  • Cisco IOS 12.0XM
  • Cisco IOS 12.0XN
  • Cisco IOS 12.0XP
  • Cisco IOS 12.0XQ
  • Cisco IOS 12.0XR
  • Cisco IOS 12.0XS
  • Cisco IOS 12.0XU
  • Cisco IOS 12.0XV
  • Cisco IOS 12.0XW

Recommendations

Use access control lists to enhance security.

Use access control lists to restrict access from unauthorized networks and hosts.
The vendor has assigned Cisco Bug ID CSCdp58462 to this issue. The vendor has fixed this issue in Cisco IOS versions 12.0(19)S, 12.0(19)ST, 12.1(1), 12.1(1)DB, 12.1(1)DC, 12.1(1)T and later. Cisco customers should contact the vendor for details on obtaining fixes.

References

Credits

Discovery of this issue is credited to FX .
Copyright © Symantec Corporation.
Permission to redistribute this alert electronically is granted as long as it is not edited in any way unless authorized by Symantec Security Response. Reprinting the whole or part of this alert in any medium other than electronically requires permission from secure@symantec.com.

Disclaimer
The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information.
Symantec, Symantec products, Symantec Security Response, and secure@symantec.com are registered trademarks of Symantec Corp. and/or affiliated companies in the United States and other countries. All other registered and unregistered trademarks represented in this document are the sole property of their respective companies/owners.

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