February 20, 2003
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.
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.
Discovery of this issue is credited to FX .
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