Vulnerability Monitor

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CVE-2015-4293

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.

Published

2015-07-30T14:59:00.087

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-399
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco ios_xe 2.1.0 Yes
Operating System cisco ios_xe 2.1.1 Yes
Operating System cisco ios_xe 2.1.2 Yes
Operating System cisco ios_xe 2.2.1 Yes
Operating System cisco ios_xe 2.2.2 Yes
Operating System cisco ios_xe 2.2.3 Yes
Operating System cisco ios_xe 2.3.0 Yes
Operating System cisco ios_xe 2.3.0t Yes
Operating System cisco ios_xe 2.3.1t Yes
Operating System cisco ios_xe 2.3.2 Yes
Operating System cisco ios_xe 2.4.0 Yes
Operating System cisco ios_xe 2.4.1 Yes
Operating System cisco ios_xe 2.5.0 Yes
Operating System cisco ios_xe 2.5.1 Yes
Operating System cisco ios_xe 2.5.2 Yes
Operating System cisco ios_xe 2.6.0 Yes
Operating System cisco ios_xe 2.6.1 Yes
Operating System cisco ios_xe 2.6.2 Yes
Operating System cisco ios_xe 3.10s.0 Yes
Operating System cisco ios_xe 3.10s.0a Yes
Operating System cisco ios_xe 3.10s.1 Yes
Operating System cisco ios_xe 3.10s.2 Yes
Operating System cisco ios_xe 3.10s.3 Yes
Operating System cisco ios_xe 3.11s.0 Yes
Operating System cisco ios_xe 3.11s.1 Yes
Operating System cisco ios_xe 3.11s.2 Yes
Operating System cisco ios_xe 3.12s.0 Yes
Operating System cisco ios_xe 3.12s.1 Yes
Operating System cisco ios_xe 3.13s.0 Yes
References