CVE-2015-4293

Cisco IOS XE <= 3.13S - Denial of Service via Fragmented IPv4/IPv6 Packet Reassembly

Title source: llm
STIX 2.1

Description

The packet-reassembly implementation in Cisco IOS XE 3.13S and earlier allows remote attackers to cause a denial of service (CPU consumption or packet loss) via fragmented (1) IPv4 or (2) IPv6 packets that trigger ATTN-3-SYNC_TIMEOUT errors after reassembly failures, aka Bug ID CSCuo37957.

References (2)

Core 2
Core References
Vendor Advisory vendor-advisory x_refsource_cisco
http://tools.cisco.com/security/center/viewAlert.x?alertId=40215
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1033122

Scores

EPSS 0.0181
EPSS Percentile 76.4%

Details

CWE
CWE-399
Status published
Products (29)
cisco/ios_xe 2.1.0
cisco/ios_xe 2.1.1
cisco/ios_xe 2.1.2
cisco/ios_xe 2.2.1
cisco/ios_xe 2.2.2
cisco/ios_xe 2.2.3
cisco/ios_xe 2.3.0
cisco/ios_xe 2.3.0t
cisco/ios_xe 2.3.1t
cisco/ios_xe 2.3.2
... and 19 more
Published Jul 30, 2015
Tracked Since Feb 18, 2026