CVE-2015-6273
First published: Sat Aug 29 2015(Updated: )
Cisco IOS XE before 3.1.2S on ASR 1000 devices mishandles the automatic setup of Virtual Fragment Reassembly (VFR) by certain firewall and NAT components, which allows remote attackers to cause a denial of service (Embedded Services Processor crash) via crafted IP packets, aka Bug IDs CSCtf87624, CSCte93229, CSCtd19103, and CSCti63623.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XE Software | =2.2.1 | |
| Cisco IOS XE Software | =2.2.2 | |
| Cisco IOS XE Software | =2.2.3 | |
| Cisco IOS XE Software | =3.1.0s | |
| Cisco IOS XE Software | =3.1.1s | |
| Cisco ASR 1001 | ||
| Cisco ASR 1001-X | ||
| Cisco ASR 1002 Fixed Router | ||
| Cisco ASR 1002-X | ||
| Cisco ASR 1004 | ||
| Cisco ASR 1006 | ||
| Cisco ASR 1013 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2015-6273?
CVE-2015-6273 has a high severity rating as it can allow remote attackers to cause a denial of service.
How do I fix CVE-2015-6273?
To fix CVE-2015-6273, upgrade to Cisco IOS XE versions 3.1.2S or later.
What are the affected devices for CVE-2015-6273?
CVE-2015-6273 affects Cisco IOS XE versions 2.2.1, 2.2.2, 2.2.3, and 3.1.0s and 3.1.1s on ASR 1000 devices.
What kind of attacks does CVE-2015-6273 enable?
CVE-2015-6273 allows attackers to send crafted IP packets that can crash the Embedded Services Processor.
What components are mishandled in CVE-2015-6273?
CVE-2015-6273 involves mishandling in the automatic setup of Virtual Fragment Reassembly by certain firewall and NAT components.
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