CVE-2018-0256 Details

CVE-2018-0256

Published: 2018-04-19
Last Modified: 2019-10-09
CVE Author: NIST National Vulnerability Database
CVE Assigner: cve@mitre.org
Summary

A vulnerability in the peer-to-peer message processing functionality of Cisco Packet Data Network Gateway could allow an unauthenticated, remote attacker to cause the Session Manager (SESSMGR) process on an affected device to restart, resulting in a denial of service (DoS) condition. The vulnerability is due to incorrect validation of peer-to-peer packet headers. An attacker could exploit this vulnerability by sending a crafted peer-to-peer packet through an affected device. A successful exploit could allow the attacker to cause the SESSMGR process on the affected device to restart unexpectedly, which could briefly impact traffic while the SESSMGR process restarts and result in a DoS condition. Cisco Bug IDs: CSCvg88786.

Analysis
Common Vulnerability Score System v2.0
Severity Medium
Base Score 5/10
Exploit Score 10/10
Access Vector Network
Access Complexity Low
Authentication None
Impact Score 2.9/10
Confidentiality Impact None
Availability Impact Partial
Integrity Impact None
Vector String AV:N/AC:L/Au:N/C:N/I:N/A:P
Common Vulnerability Score System v3.1
Severity Medium
Base Score 5.8/10
Exploit Score 3.9/10
Access Vector Network
Access Complexity Low
Privileges Required None
Impact Score 1.4/10
Confidentiality Impact None
Availability Impact Low
Integrity Impact None
Scope Changed
User Interaction None
Vector String CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Products Reported
CPE Vulnerable Start Excluding
cpe:2.3:o:cisco:asr_5000_series_software:20.3.0.66671:*:*:*: Yes - -
cpe:2.3:o:cisco:asr_5000_series_software:p2p_2.16.879:*:*:*: Yes - -
References

http://www.securityfocus.com/bid/103951
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-

CVE ID
CVE-2018-0256
Published
2018-04-19
Modified
2019-10-09
CVSSv2.0
Medium
CVSSv3.1
Medium
PCI Compliance
Pass
US-CERT Alert
No
CWE
CWE-20

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