Vulnerability Description
The DHCP implementation in Cisco IOS on Aironet access points does not properly handle error conditions with short leases and unsuccessful lease-renewal attempts, which allows remote attackers to cause a denial of service (device restart) by triggering a transition into a recovery state that was intended to involve a network-interface restart but actually involves a full device restart, aka Bug ID CSCtn16281.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ios | - |
| Cisco | Aironet 1040 | - |
| Cisco | Aironet 1140 | - |
| Cisco | Aironet 1260 | - |
| Cisco | Aironet 3500 | - |
| Cisco | Aironet 3600 | - |
| Cisco | Aironet 3600E | - |
| Cisco | Aironet 3600I | - |
| Cisco | Aironet 3600P | - |
| Cisco | Aironet 600 Office Extend | - |
| Cisco | Aironet Ap1100 | All versions |
| Cisco | Aironet Ap1130Ag | All versions |
| Cisco | Aironet Ap1131 | All versions |
| Cisco | Aironet Ap1200 | All versions |
| Cisco | Aironet Ap1230Ag | All versions |
| Cisco | Aironet Ap1240 | All versions |
| Cisco | Aironet Ap1240Ag | All versions |
| Cisco | Aironet Ap1300 | All versions |
| Cisco | Aironet Ap1400 | All versions |
| Cisco | Aironet Ap340 | All versions |
Related Weaknesses (CWE)
References
- http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-7997Vendor Advisory
- http://www.securitytracker.com/id/1031218
- https://exchange.xforce.ibmcloud.com/vulnerabilities/98691
- http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-7997Vendor Advisory
- http://www.securitytracker.com/id/1031218
- https://exchange.xforce.ibmcloud.com/vulnerabilities/98691
FAQ
What is CVE-2014-7997?
CVE-2014-7997 is a vulnerability with a CVSS score of 6.1 (MEDIUM). The DHCP implementation in Cisco IOS on Aironet access points does not properly handle error conditions with short leases and unsuccessful lease-renewal attempts, which allows remote attackers to caus...
How severe is CVE-2014-7997?
CVE-2014-7997 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2014-7997?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ios, Cisco Aironet 1040, Cisco Aironet 1140, Cisco Aironet 1260, Cisco Aironet 3500.