Vulnerability Details : CVE-2017-12278
A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco Wireless LAN Controllers could allow an authenticated, remote attacker to cause an affected device to restart, resulting in a denial of service (DoS) condition. The vulnerability is due to a memory leak that occurs on an affected device after the device fails to deallocate a buffer that is used when certain MIBs are polled. An attacker who knows the SNMP Version 2 SNMP Read string or has valid SNMP Version 3 credentials for an affected device could repeatedly poll the affected MIB object IDs (OIDs) and consume available memory on the device. When memory is sufficiently depleted on the device, the device will restart, resulting in a DoS condition. Cisco Bug IDs: CSCvc71674.
Vulnerability category: OverflowDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2017-12278
Probability of exploitation activity in the next 30 days: 0.14%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 49 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-12278
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
5.2
|
MEDIUM | AV:A/AC:M/Au:S/C:N/I:N/A:C |
4.4
|
6.9
|
NIST |
6.3
|
MEDIUM | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H |
1.8
|
4.0
|
NIST |
CWE ids for CVE-2017-12278
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The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.Assigned by: ykramarz@cisco.com (Secondary)
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The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-12278
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http://www.securityfocus.com/bid/101642
Cisco Wireless LAN Controller CVE-2017-12278 Denial of Service VulnerabilityThird Party Advisory;VDB Entry
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https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-wlc1
Cisco Wireless LAN Controller Simple Network Management Protocol Memory Leak Denial of Service VulnerabilityVendor Advisory
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http://www.securitytracker.com/id/1039712
Cisco Wireless LAN Controller SNMP Memory Leak Lets Remote Authenticated Users Cause the Target System to Reload - SecurityTrackerThird Party Advisory;VDB Entry
Products affected by CVE-2017-12278
- cpe:2.3:o:cisco:wireless_lan_controller_software:-:*:*:*:*:*:*:*