CVE-2018-0160: Double Free
First published: Wed Mar 28 2018(Updated: )
A vulnerability in Simple Network Management Protocol (SNMP) subsystem of Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to improper management of memory resources, referred to as a double free. An attacker could exploit this vulnerability by sending crafted SNMP packets to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. To exploit this vulnerability via SNMP Version 2c or earlier, the attacker must know the SNMP read-only community string for an affected system. To exploit this vulnerability via SNMP Version 3, the attacker must know the user credentials for the affected system. This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS XE Software, have been configured to be queried over SNMP, and have Network Address Translation (NAT) enabled. Cisco Bug IDs: CSCve75818.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XE | =15.5\(3\)s | |
| Cisco Asr 901-12c-f-d | ||
| Cisco Asr 901-12c-ft-d | ||
| Cisco Asr 901-4c-f-d | ||
| Cisco Asr 901-4c-ft-d | ||
| Cisco Asr 901-6cz-f-a | ||
| Cisco Asr 901-6cz-f-d | ||
| Cisco Asr 901-6cz-fs-a | ||
| Cisco Asr 901-6cz-fs-d | ||
| Cisco Asr 901-6cz-ft-a | ||
| Cisco Asr 901-6cz-ft-d | ||
| Cisco Asr 901s-2sg-f-ah | ||
| Cisco Asr 901s-2sg-f-d | ||
| Cisco Asr 901s-3sg-f-ah | ||
| Cisco Asr 901s-3sg-f-d | ||
| Cisco Asr 901s-4sg-f-d | ||
| Cisco Me 3600x-24cx-m | ||
| Cisco Me 3600x-24fs-m | ||
| Cisco Me 3600x-24ts-m | ||
| Cisco Me 3800x-24fs-m |
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Reference Links
Frequently Asked Questions
What is CVE-2018-0160?
CVE-2018-0160 is a vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS XE Software that could allow an authenticated, remote attacker to cause a denial of service (DoS) condition.
How does CVE-2018-0160 work?
CVE-2018-0160 is caused by improper management of memory resources, resulting in a double free vulnerability.
What is the severity of CVE-2018-0160?
The severity of CVE-2018-0160 is medium with a CVSS score of 6.3.
Which software versions are affected by CVE-2018-0160?
Cisco IOS XE Software version 15.5(3)s is affected by CVE-2018-0160.
How can CVE-2018-0160 be fixed?
To fix CVE-2018-0160, Cisco has released a security advisory with recommended actions.
- agent/type
- agent/last-modified-date
- collector/nvd-index
- agent/software-canonical-lookup-request
- agent/author
- agent/weakness
- agent/severity
- agent/references
- agent/softwarecombine
- agent/description
- agent/first-publish-date
- agent/event
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/cisco
- canonical/cisco ios xe
- version/cisco ios xe/15.5\(3\)s
- canonical/cisco asr 901-12c-f-d
- canonical/cisco asr 901-12c-ft-d
- canonical/cisco asr 901-4c-f-d
- canonical/cisco asr 901-4c-ft-d
- canonical/cisco asr 901-6cz-f-a
- canonical/cisco asr 901-6cz-f-d
- canonical/cisco asr 901-6cz-fs-a
- canonical/cisco asr 901-6cz-fs-d
- canonical/cisco asr 901-6cz-ft-a
- canonical/cisco asr 901-6cz-ft-d
- canonical/cisco asr 901s-2sg-f-ah
- canonical/cisco asr 901s-2sg-f-d
- canonical/cisco asr 901s-3sg-f-ah
- canonical/cisco asr 901s-3sg-f-d
- canonical/cisco asr 901s-4sg-f-d
- canonical/cisco me 3600x-24cx-m
- canonical/cisco me 3600x-24fs-m
- canonical/cisco me 3600x-24ts-m
- canonical/cisco me 3800x-24fs-m