CVE-2015-4293

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Summary

CVECVE-2015-4293
StatePUBLISHED
Assignercisco
Source PriorityCVE Program / NVD first with legacy fallback
Published2015-07-30 14:59:00 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v2.0 5 from [email protected]

AV:N/AC:L/Au:N/C:N/I:N/A:P

Problem Types: CWE-399 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Cisco Ios Xe 2.1.0 All All All
Operating System Cisco Ios Xe 2.1.1 All All All
Operating System Cisco Ios Xe 2.1.2 All All All
Operating System Cisco Ios Xe 2.2.1 All All All
Operating System Cisco Ios Xe 2.2.2 All All All
Operating System Cisco Ios Xe 2.2.3 All All All
Operating System Cisco Ios Xe 2.3.0 All All All
Operating System Cisco Ios Xe 2.3.0t All All All
Operating System Cisco Ios Xe 2.3.1t All All All
Operating System Cisco Ios Xe 2.3.2 All All All
Operating System Cisco Ios Xe 2.4.0 All All All
Operating System Cisco Ios Xe 2.4.1 All All All
Operating System Cisco Ios Xe 2.5.0 All All All
Operating System Cisco Ios Xe 2.5.1 All All All
Operating System Cisco Ios Xe 2.5.2 All All All
Operating System Cisco Ios Xe 2.6.0 All All All
Operating System Cisco Ios Xe 2.6.1 All All All
Operating System Cisco Ios Xe 2.6.2 All All All
Operating System Cisco Ios Xe 3.10s.0 All All All
Operating System Cisco Ios Xe 3.10s.0a All All All
Operating System Cisco Ios Xe 3.10s.1 All All All
Operating System Cisco Ios Xe 3.10s.2 All All All
Operating System Cisco Ios Xe 3.10s.3 All All All
Operating System Cisco Ios Xe 3.11s.0 All All All
Operating System Cisco Ios Xe 3.11s.1 All All All
Operating System Cisco Ios Xe 3.11s.2 All All All
Operating System Cisco Ios Xe 3.12s.0 All All All
Operating System Cisco Ios Xe 3.12s.1 All All All
Operating System Cisco Ios Xe 3.13s.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Cisco IOS-XE Packet Fragmentation Error Message Lets Remote Users Consume Excessive CPU Resources on the Target System - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
Cisco IOS-XE Fragmented Packet Resource Consumption Vulnerability af854a3a-2127-422b-91ae-364da2661108 tools.cisco.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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