CVE-2018-18066: Null Pointer Dereference
First published: Mon Oct 08 2018(Updated: )
snmp_oid_compare in snmplib/snmp_api.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an unauthenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Net-snmp Net-snmp | <5.8 | |
| Netapp Cloud Backup | ||
| Netapp Hyper Converged Infrastructure | ||
| NetApp StorageGRID Webscale | ||
| NetApp Data ONTAP | ||
| NetApp E-Series SANtricity OS Controller | >=11.0<=11.5 | |
| Netapp Solidfire Element Os |
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Reference Links
- https://dumpco.re/blog/net-snmp-5.7.3-remote-dos
- https://security.netapp.com/advisory/ntap-20181107-0001/
- https://sourceforge.net/p/net-snmp/code/ci/7ffb8e25a0db851953155de91f0170e9bf8c457d/
- https://sourceforge.net/p/net-snmp/code/ci/f23bcd3ac6ddee5d0a48f9703007ccc738914791/
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
Frequently Asked Questions
What is CVE-2018-18066?
CVE-2018-18066 is a vulnerability in Net-SNMP before 5.8 that allows an unauthenticated attacker to remotely crash the instance via a crafted UDP packet, resulting in a denial of service.
How severe is CVE-2018-18066?
CVE-2018-18066 has a severity rating of 7.5 (high).
Which software versions are affected by CVE-2018-18066?
Net-SNMP versions before 5.8, Netapp Cloud Backup, Netapp Hyper Converged Infrastructure, NetApp StorageGRID Webscale, NetApp Data ONTAP, NetApp E-Series SANtricity OS Controller (versions 11.0 to 11.5), and Netapp Solidfire Element Os are affected by CVE-2018-18066.
How can an unauthenticated attacker exploit CVE-2018-18066?
An unauthenticated attacker can exploit CVE-2018-18066 by sending a crafted UDP packet to the vulnerable instance.
Are there any fixes or patches for CVE-2018-18066?
It is recommended to update Net-SNMP to version 5.8 or later to mitigate the vulnerability.
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- version/netapp e-series santricity os controller/11.5
- canonical/netapp solidfire element os