CVE-2018-18066 Null dereference in n/a
High 7.5
Published
Updated
Check this codebase for CVE-2018-18066 and fix it if it is affected.
What it is: CVE-2018-18066 is a high-severity vulnerability in Netapp Cloud Backup, published on 8 Oct 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-18066 exists.
Affected product: Netapp Cloud Backup. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2018-18066/ (Markdown: https://insights.sbomify.com/CVE-2018-18066/index.md)
An unauthenticated attacker can crash the Net-SNMP service remotely via a crafted UDP packet due to a null pointer dereference.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-18066?
CVE-2018-18066 is a high-severity vulnerability in Netapp Cloud Backup, published on 8 Oct 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-476
Which versions are affected by CVE-2018-18066?
It affects 7 products.
Linux distribution packages (40)
net-snmp Red Hat:enterprise_linux:7::client | All versions | 1:5.7.2-47.el7 |
net-snmp-agent-libs Red Hat:enterprise_linux:7::client | All versions | 1:5.7.2-47.el7 |
net-snmp-debuginfo Red Hat:enterprise_linux:7::client | All versions | 1:5.7.2-47.el7 |
net-snmp-devel Red Hat:enterprise_linux:7::client | All versions | 1:5.7.2-47.el7 |
net-snmp-gui Red Hat:enterprise_linux:7::client | All versions | 1:5.7.2-47.el7 |
net-snmp-libs Red Hat:enterprise_linux:7::client | All versions | 1:5.7.2-47.el7 |
net-snmp-perl Red Hat:enterprise_linux:7::client | All versions | 1:5.7.2-47.el7 |
net-snmp-python Red Hat:enterprise_linux:7::client | All versions | 1:5.7.2-47.el7 |
net-snmp-sysvinit Red Hat:enterprise_linux:7::client | All versions | 1:5.7.2-47.el7 |
net-snmp-utils Red Hat:enterprise_linux:7::client | All versions | 1:5.7.2-47.el7 |
net-snmp Red Hat:enterprise_linux:7::computenode | All versions | 1:5.7.2-47.el7 |
net-snmp-agent-libs Red Hat:enterprise_linux:7::computenode | All versions | 1:5.7.2-47.el7 |
net-snmp-debuginfo Red Hat:enterprise_linux:7::computenode | All versions | 1:5.7.2-47.el7 |
net-snmp-devel Red Hat:enterprise_linux:7::computenode | All versions | 1:5.7.2-47.el7 |
net-snmp-gui Red Hat:enterprise_linux:7::computenode | All versions | 1:5.7.2-47.el7 |
net-snmp-libs Red Hat:enterprise_linux:7::computenode | All versions | 1:5.7.2-47.el7 |
net-snmp-perl Red Hat:enterprise_linux:7::computenode | All versions | 1:5.7.2-47.el7 |
net-snmp-python Red Hat:enterprise_linux:7::computenode | All versions | 1:5.7.2-47.el7 |
net-snmp-sysvinit Red Hat:enterprise_linux:7::computenode | All versions | 1:5.7.2-47.el7 |
net-snmp-utils Red Hat:enterprise_linux:7::computenode | All versions | 1:5.7.2-47.el7 |
net-snmp Red Hat:enterprise_linux:7::server | All versions | 1:5.7.2-47.el7 |
net-snmp-agent-libs Red Hat:enterprise_linux:7::server | All versions | 1:5.7.2-47.el7 |
net-snmp-debuginfo Red Hat:enterprise_linux:7::server | All versions | 1:5.7.2-47.el7 |
net-snmp-devel Red Hat:enterprise_linux:7::server | All versions | 1:5.7.2-47.el7 |
net-snmp-gui Red Hat:enterprise_linux:7::server | All versions | 1:5.7.2-47.el7 |
net-snmp-libs Red Hat:enterprise_linux:7::server | All versions | 1:5.7.2-47.el7 |
net-snmp-perl Red Hat:enterprise_linux:7::server | All versions | 1:5.7.2-47.el7 |
net-snmp-python Red Hat:enterprise_linux:7::server | All versions | 1:5.7.2-47.el7 |
net-snmp-sysvinit Red Hat:enterprise_linux:7::server | All versions | 1:5.7.2-47.el7 |
net-snmp-utils Red Hat:enterprise_linux:7::server | All versions | 1:5.7.2-47.el7 |
net-snmp Red Hat:enterprise_linux:7::workstation | All versions | 1:5.7.2-47.el7 |
net-snmp-agent-libs Red Hat:enterprise_linux:7::workstation | All versions | 1:5.7.2-47.el7 |
net-snmp-debuginfo Red Hat:enterprise_linux:7::workstation | All versions | 1:5.7.2-47.el7 |
net-snmp-devel Red Hat:enterprise_linux:7::workstation | All versions | 1:5.7.2-47.el7 |
net-snmp-gui Red Hat:enterprise_linux:7::workstation | All versions | 1:5.7.2-47.el7 |
net-snmp-libs Red Hat:enterprise_linux:7::workstation | All versions | 1:5.7.2-47.el7 |
net-snmp-perl Red Hat:enterprise_linux:7::workstation | All versions | 1:5.7.2-47.el7 |
net-snmp-python Red Hat:enterprise_linux:7::workstation | All versions | 1:5.7.2-47.el7 |
net-snmp-sysvinit Red Hat:enterprise_linux:7::workstation | All versions | 1:5.7.2-47.el7 |
net-snmp-utils Red Hat:enterprise_linux:7::workstation | All versions | 1:5.7.2-47.el7 |
Products include Net-Snmp Net-Snmp, Netapp Cloud Backup, Netapp Data Ontap, Netapp E-Series Santricity Os Controller, Netapp Hyper Converged Infrastructure, Netapp Solidfire Element Os and 1 more.
How do I fix CVE-2018-18066?
Upgrade to a fixed version.
Is CVE-2018-18066 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-18066 exists.
Other vulnerabilities in Netapp Cloud Backup
Sources
Also known as DEBIAN-CVE-2018-18066, GHSA-9mpr-24m6-767p, RHSA-2020:1081, RHSA-2020:2539.