SB2015062701 - Race condition in Nextcloud ios

Description

This security bulletin contains information about 1 vulnerability.

1) Race condition (CVE-ID: CVE-2015-4199)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

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.

Remediation

Install update from vendor's website.

References

• http://tools.cisco.com/security/center/viewAlert.x?alertId=39423
• http://www.securityfocus.com/bid/75335
• http://www.securitytracker.com/id/1032692