CVE-2015-4293
First published: Thu Jul 30 2015(Updated: )
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.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XE Web UI | =2.1.0 | |
| Cisco IOS XE Web UI | =2.1.1 | |
| Cisco IOS XE Web UI | =2.1.2 | |
| Cisco IOS XE Web UI | =2.2.1 | |
| Cisco IOS XE Web UI | =2.2.2 | |
| Cisco IOS XE Web UI | =2.2.3 | |
| Cisco IOS XE Web UI | =2.3.0 | |
| Cisco IOS XE Web UI | =2.3.0t | |
| Cisco IOS XE Web UI | =2.3.1t | |
| Cisco IOS XE Web UI | =2.3.2 | |
| Cisco IOS XE Web UI | =2.4.0 | |
| Cisco IOS XE Web UI | =2.4.1 | |
| Cisco IOS XE Web UI | =2.5.0 | |
| Cisco IOS XE Web UI | =2.5.1 | |
| Cisco IOS XE Web UI | =2.5.2 | |
| Cisco IOS XE Web UI | =2.6.0 | |
| Cisco IOS XE Web UI | =2.6.1 | |
| Cisco IOS XE Web UI | =2.6.2 | |
| Cisco IOS XE Web UI | =3.10s.0 | |
| Cisco IOS XE Web UI | =3.10s.0a | |
| Cisco IOS XE Web UI | =3.10s.1 | |
| Cisco IOS XE Web UI | =3.10s.2 | |
| Cisco IOS XE Web UI | =3.10s.3 | |
| Cisco IOS XE Web UI | =3.11s.0 | |
| Cisco IOS XE Web UI | =3.11s.1 | |
| Cisco IOS XE Web UI | =3.11s.2 | |
| Cisco IOS XE Web UI | =3.12s.0 | |
| Cisco IOS XE Web UI | =3.12s.1 | |
| Cisco IOS XE Web UI | =3.13s.0 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2015-4293?
CVE-2015-4293 has a high severity rating due to its potential to cause denial of service.
How do I fix CVE-2015-4293?
To fix CVE-2015-4293, it is recommended to upgrade to the latest version of Cisco IOS XE that contains the security patch.
What type of attack does CVE-2015-4293 involve?
CVE-2015-4293 involves a denial of service attack through the exploitation of fragmented IPv4 and IPv6 packets.
What products are affected by CVE-2015-4293?
CVE-2015-4293 affects multiple versions of Cisco IOS XE, including versions from 2.1.0 to 3.13S.
What is the impact of CVE-2015-4293?
The impact of CVE-2015-4293 includes excessive CPU consumption and packet loss leading to service disruptions.
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- canonical/cisco ios xe web ui
- version/cisco ios xe web ui/2.1.0
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- version/cisco ios xe web ui/2.5.0
- version/cisco ios xe web ui/2.5.1
- version/cisco ios xe web ui/2.5.2
- version/cisco ios xe web ui/2.6.0
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- version/cisco ios xe web ui/3.12s.0
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- version/cisco ios xe web ui/3.13s.0