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CVE-2015-4203

nvd nist
Published: Jun 23, 2015Modified: May 6, 2026

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5.4
Vector
AV:N/AC:H/Au:N/C:N/I:N/A:C
Exploitability: 4.9 / Impact: 6.9
Source: NVD

Description

Race condition in Cisco IOS 12.2SCH in the Performance Routing Engine (PRE) module on uBR10000 devices, when NetFlow and an MPLS IPv6 VPN are configured, allows remote attackers to cause a denial of service (PXF process crash) by sending malformed MPLS 6VPE packets quickly, aka Bug ID CSCud83396.

Affected (2)

Products: Cisco: Ios
Cisco
1 product
Ios
Configuration A
2 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Cisco
Ios
Version 12.2(33)sch
Ios
Version 12.2sch
Running on/withPlatform Versions
Cisco
Ubr10000 Cable Modem Termination System
All versions

Related CWEs

CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.

References (6)

Source: psirt@cisco.com
Vendor Advisory
Source: psirt@cisco.com
Third Party AdvisoryVDB Entry
Source: psirt@cisco.com
Third Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryVDB Entry

Timeline

No history available yet.