Vulnerability Monitor

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CVE-2018-0151

A vulnerability in the quality of service (QoS) subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges. The vulnerability is due to incorrect bounds checking of certain values in packets that are destined for UDP port 18999 of an affected device. An attacker could exploit this vulnerability by sending malicious packets to an affected device. When the packets are processed, an exploitable buffer overflow condition may occur. A successful exploit could allow the attacker to execute arbitrary code on the affected device with elevated privileges. The attacker could also leverage this vulnerability to cause the device to reload, causing a temporary DoS condition while the device is reloading. The malicious packets must be destined to and processed by an affected device. Traffic transiting a device will not trigger the vulnerability. Cisco Bug IDs: CSCvf73881.

Published

2018-03-28T22:29:00.297

Last Modified

2025-01-27T20:19:34.313

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

10.0

Impact Score

10.0

Weaknesses

Type: Secondary
CWE-119
Type: Primary
CWE-119

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	cisco	ios_xe	16.5.1	Yes
Operating System	cisco	ios_xe	-	Yes

References

http://www.securityfocus.com/bid/103540 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1040582 Third Party Advisory, VDB Entry ([email protected])
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-03 Third Party Advisory, US Government Resource ([email protected])
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-qos Mitigation, Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/103540 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1040582 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-03 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-qos Mitigation, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)