CVE-2013-5480: Input Validation
First published: Fri Sep 27 2013(Updated: )
The DNS-over-TCP implementation in Cisco IOS 12.2 and 15.0 through 15.3, when NAT is used, allows remote attackers to cause a denial of service (device reload) via a crafted IPv4 DNS TCP stream, aka Bug ID CSCuf28733.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS | =12.2 | |
| Cisco IOS | =15.0 | |
| Cisco IOS | =15.1 | |
| Cisco IOS | =15.2 | |
| Cisco IOS | =15.3 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2013-5480?
CVE-2013-5480 is classified as a high severity vulnerability due to its potential to cause denial of service.
How do I fix CVE-2013-5480?
To fix CVE-2013-5480, upgrade to a non-vulnerable version of Cisco IOS that is later than 15.3.
What types of systems are affected by CVE-2013-5480?
CVE-2013-5480 affects Cisco IOS versions 12.2, 15.0, 15.1, 15.2, and 15.3 when NAT is used.
What are the attack vectors for CVE-2013-5480?
The attack vector for CVE-2013-5480 is a crafted IPv4 DNS TCP stream sent to a vulnerable Cisco device.
Can CVE-2013-5480 be exploited remotely?
Yes, CVE-2013-5480 can be exploited remotely, allowing attackers to trigger a device reload.
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- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
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- vendor/cisco
- canonical/cisco ios
- version/cisco ios/12.2
- version/cisco ios/15.0
- version/cisco ios/15.1
- version/cisco ios/15.2
- version/cisco ios/15.3