CVE-2009-1168

Cisco IOS 12.0-12.4 & IOS XE 2.3-2.4.0 DoS via BGP Update with Long AS Number Series

Title source: llm
STIX 2.1

Description

Cisco IOS 12.0(32)S12 through 12.0(32)S13 and 12.0(33)S3 through 12.0(33)S4, 12.0(32)SY8 through 12.0(32)SY9, 12.2(33)SXI1, 12.2XNC before 12.2(33)XNC2, 12.2XND before 12.2(33)XND1, and 12.4(24)T1; and IOS XE 2.3 through 2.3.1t and 2.4 through 2.4.0; when RFC4893 BGP routing is enabled, allows remote attackers to cause a denial of service (memory corruption and device reload) by using an RFC4271 peer to send an update with a long series of AS numbers, aka Bug ID CSCsy86021.

References (6)

Core 6
Core References
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6697
Patch, Vendor Advisory vendor-advisory x_refsource_cisco
http://www.cisco.com/en/US/products/products_security_advisory09186a0080aea4c9.shtml
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/36046
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2009/2082
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id?1022619
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/35862

Scores

EPSS 0.0245
EPSS Percentile 82.7%

Details

CWE
CWE-399
Status published
Products (15)
cisco/ios 12.0\(32\)s12
cisco/ios 12.0\(32\)s13
cisco/ios 12.0\(32\)sy8
cisco/ios 12.0\(32\)sy9
cisco/ios 12.0\(33\)s3
cisco/ios 12.0\(33\)s4
cisco/ios 12.2\(33\)sxi1
cisco/ios 12.2\(33\)sxi2
cisco/ios 12.2xnc
cisco/ios 12.2xnd
... and 5 more
Published Jul 30, 2009
Tracked Since Feb 18, 2026