Vulnerability Details : CVE-2016-6455
A vulnerability in the Slowpath of StarOS for Cisco ASR 5500 Series routers with Data Processing Card 2 (DPC2) could allow an unauthenticated, remote attacker to cause a subset of the subscriber sessions to be disconnected, resulting in a partial denial of service (DoS) condition. This vulnerability affects Cisco ASR 5500 devices with Data Processing Card 2 (DPC2) running StarOS 18.0 or later. More Information: CSCvb12081. Known Affected Releases: 18.7.4 19.5.0 20.0.2.64048 20.2.3 21.0.0. Known Fixed Releases: 18.7.4 18.7.4.65030 18.8.M0.65044 19.5.0 19.5.0.65092 19.5.M0.65023 19.5.M0.65050 20.2.3 20.2.3.64982 20.2.3.65017 20.2.a4.65307 20.3.M0.64984 20.3.M0.65029 20.3.M0.65037 20.3.M0.65071 20.3.T0.64985 20.3.T0.65031 20.3.T0.65043 20.3.T0.65067 21.0.0 21.0.0.65256 21.0.M0.64922 21.0.M0.64983 21.0.M0.65140 21.0.V0.65150 21.1.A0.64932 21.1.A0.64987 21.1.A0.65145 21.1.PP0.65270 21.1.R0.65130 21.1.R0.65135 21.1.R0.65154 21.1.VC0.65203 21.2.A0.65147.
Vulnerability category: Denial of service
Exploit prediction scoring system (EPSS) score for CVE-2016-6455
Probability of exploitation activity in the next 30 days: 0.56%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 75 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2016-6455
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2016-6455
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-6455
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https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161102-asr
Cisco ASR 5500 Series with DPC2 Cards SESSMGR Denial of Service VulnerabilityVendor Advisory
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http://www.securitytracker.com/id/1037186
Cisco ASR 5500 Series Router Fragmented Packet Processing Bug in StarOS Slowpath Lets Remote Users Deny Service - SecurityTracker
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http://www.securityfocus.com/bid/94071
Cisco StarOS for ASR 5500 Series Routers CVE-2016-6455 Remote Denial of Service Vulnerability
Products affected by CVE-2016-6455
- cpe:2.3:o:cisco:asr_5000_software:19.0.m0.61045:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asr_5000_software:18.0.0.57828:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asr_5000_software:18.1.0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asr_5000_software:18.0.0.59167:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asr_5000_software:20.0.0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asr_5000_software:19.1.0.61559:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asr_5000_software:18.4.0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asr_5000_software:18.1.0.59780:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asr_5000_software:19.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asr_5000_software:18.0.0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asr_5000_software:19.1.0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asr_5000_software:19.3.0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asr_5000_software:19.0.m0.60828:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asr_5000_software:18.1.0.59776:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asr_5000_software:19.0.m0.60737:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asr_5000_software:18.3_base:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asr_5000_software:18.0.0.59211:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asr_5000_software:18.0.l0.59219:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asr_5000_software:19.2.0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asr_5000_software:18.3.0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asr_5000_software:18.1_base:*:*:*:*:*:*:*