Vulnerability Description
Race condition in the IPv6-to-IPv4 functionality in Cisco IOS 15.3S in the Performance Routing Engine (PRE) module on UBR devices allows remote attackers to cause a denial of service (NULL pointer free and module crash) by triggering intermittent connectivity with many IPv6 CPE devices, aka Bug ID CSCug47366.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ios | 15.3s |
Related Weaknesses (CWE)
References
- http://tools.cisco.com/security/center/viewAlert.x?alertId=39423Vendor Advisory
- http://www.securityfocus.com/bid/75335Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1032692Third Party AdvisoryVDB Entry
- http://tools.cisco.com/security/center/viewAlert.x?alertId=39423Vendor Advisory
- http://www.securityfocus.com/bid/75335Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1032692Third Party AdvisoryVDB Entry
FAQ
What is CVE-2015-4199?
CVE-2015-4199 is a vulnerability with a CVSS score of 7.1 (HIGH). Race condition in the IPv6-to-IPv4 functionality in Cisco IOS 15.3S in the Performance Routing Engine (PRE) module on UBR devices allows remote attackers to cause a denial of service (NULL pointer fre...
How severe is CVE-2015-4199?
CVE-2015-4199 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-4199?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ios.