CVE-2018-14632 JSON-Patch Out-of-bounds Write vulnerability
High 7.7
Published
Updated
Check this codebase for CVE-2018-14632 and fix it if it is affected.
What it is: CVE-2018-14632 is a high-severity memory corruption vulnerability in Redhat Openshift Container Platform, published on 6 Sep 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-14632 in the wild and no public exploit code.
Affected packages and fixed versions:
- github.com/evanphx/json-patch (Go): affected all versions; fixed in 0.5.2, 3.0.1-0.20180525145409-4c9aadca8f89+incompatible
- github.com/evanphx/json-patch (Go): affected all versions; fixed in 0.5.2
- github.com/evanphx/json-patch (Go): affected all versions; fixed in 0.5.2
- github.com/evanphx/json-patch (Go): affected from 3.0.0; fixed in 3.0.1-0.20180525145409-4c9aadca8f89
- github.com/evanphx/json-patch (Go): affected from 3.0.0; fixed in 3.0.1-0.20180525145409-4c9aadca8f89
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-2018-14632/ (Markdown: https://insights.sbomify.com/CVE-2018-14632/index.md)
An out-of-bounds write in OpenShift's oc patch command allows attackers to cause a denial of service on the master API service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-14632?
CVE-2018-14632 is a high-severity memory corruption vulnerability in Redhat Openshift Container Platform, published on 6 Sep 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An out of bound write can occur when patching an Openshift object using the 'oc patch' functionality in OpenShift Container Platform before 3.7. An attacker can use this flaw to cause a denial of service attack on the Openshift master api service which provides cluster management.
Weakness: CWE-787
Which versions are affected by CVE-2018-14632?
5 open source packages ship an affected version, including github.com/evanphx/json-patch. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
github.com/evanphx/json-patch Go | All versions | 0.5.2, 3.0.1-0.20180525145409-4c9aadca8f89+incompatible |
github.com/evanphx/json-patch Go | All versions | 0.5.2 |
github.com/evanphx/json-patch Go | All versions | 0.5.2 |
github.com/evanphx/json-patch Go | From 3.0.0 | 3.0.1-0.20180525145409-4c9aadca8f89 |
github.com/evanphx/json-patch Go | From 3.0.0 | 3.0.1-0.20180525145409-4c9aadca8f89 |
Linux distribution packages (28)
atomic-openshift Red Hat:openshift:3.11::el7 | All versions | 0:3.11.16-1.git.0.b48b8f8.el7 |
atomic-openshift-clients Red Hat:openshift:3.11::el7 | All versions | 0:3.11.16-1.git.0.b48b8f8.el7 |
atomic-openshift-clients-redistributable Red Hat:openshift:3.11::el7 | All versions | 0:3.11.16-1.git.0.b48b8f8.el7 |
atomic-openshift-docker-excluder Red Hat:openshift:3.11::el7 | All versions | 0:3.11.16-1.git.0.b48b8f8.el7 |
atomic-openshift-excluder Red Hat:openshift:3.11::el7 | All versions | 0:3.11.16-1.git.0.b48b8f8.el7 |
atomic-openshift-hyperkube Red Hat:openshift:3.11::el7 | All versions | 0:3.11.16-1.git.0.b48b8f8.el7 |
atomic-openshift-hypershift Red Hat:openshift:3.11::el7 | All versions | 0:3.11.16-1.git.0.b48b8f8.el7 |
atomic-openshift-master Red Hat:openshift:3.11::el7 | All versions | 0:3.11.16-1.git.0.b48b8f8.el7 |
atomic-openshift-node Red Hat:openshift:3.11::el7 | All versions | 0:3.11.16-1.git.0.b48b8f8.el7 |
atomic-openshift-pod Red Hat:openshift:3.11::el7 | All versions | 0:3.11.16-1.git.0.b48b8f8.el7 |
atomic-openshift-sdn-ovs Red Hat:openshift:3.11::el7 | All versions | 0:3.11.16-1.git.0.b48b8f8.el7 |
atomic-openshift-template-service-broker Red Hat:openshift:3.11::el7 | All versions | 0:3.11.16-1.git.0.b48b8f8.el7 |
atomic-openshift-tests Red Hat:openshift:3.11::el7 | All versions | 0:3.11.16-1.git.0.b48b8f8.el7 |
atomic-openshift Red Hat:openshift:3.6::el7 | All versions | 0:3.6.173.0.130-1.git.0.8d78a39.el7 |
atomic-openshift-clients Red Hat:openshift:3.6::el7 | All versions | 0:3.6.173.0.130-1.git.0.8d78a39.el7 |
atomic-openshift-clients-redistributable Red Hat:openshift:3.6::el7 | All versions | 0:3.6.173.0.130-1.git.0.8d78a39.el7 |
atomic-openshift-cluster-capacity Red Hat:openshift:3.6::el7 | All versions | 0:3.6.173.0.130-1.git.0.8d78a39.el7 |
atomic-openshift-docker-excluder Red Hat:openshift:3.6::el7 | All versions | 0:3.6.173.0.130-1.git.0.8d78a39.el7 |
atomic-openshift-dockerregistry Red Hat:openshift:3.6::el7 | All versions | 0:3.6.173.0.130-1.git.0.8d78a39.el7 |
atomic-openshift-excluder Red Hat:openshift:3.6::el7 | All versions | 0:3.6.173.0.130-1.git.0.8d78a39.el7 |
atomic-openshift-federation-services Red Hat:openshift:3.6::el7 | All versions | 0:3.6.173.0.130-1.git.0.8d78a39.el7 |
atomic-openshift-master Red Hat:openshift:3.6::el7 | All versions | 0:3.6.173.0.130-1.git.0.8d78a39.el7 |
atomic-openshift-node Red Hat:openshift:3.6::el7 | All versions | 0:3.6.173.0.130-1.git.0.8d78a39.el7 |
atomic-openshift-pod Red Hat:openshift:3.6::el7 | All versions | 0:3.6.173.0.130-1.git.0.8d78a39.el7 |
atomic-openshift-sdn-ovs Red Hat:openshift:3.6::el7 | All versions | 0:3.6.173.0.130-1.git.0.8d78a39.el7 |
atomic-openshift-service-catalog Red Hat:openshift:3.6::el7 | All versions | 0:3.6.173.0.130-1.git.0.8d78a39.el7 |
atomic-openshift-tests Red Hat:openshift:3.6::el7 | All versions | 0:3.6.173.0.130-1.git.0.8d78a39.el7 |
tuned-profiles-atomic-openshift-node Red Hat:openshift:3.6::el7 | All versions | 0:3.6.173.0.130-1.git.0.8d78a39.el7 |
Products include Redhat Openshift Container Platform, Starcounter-Jack Json-Patch.
How do I fix CVE-2018-14632?
Upgrade github.com/evanphx/json-patch to a fixed version for your release line: 0.5.2, 3.0.1-0.20180525145409-4c9aadca8f89+incompatible or 3.0.1-0.20180525145409-4c9aadca8f89.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2018-14632 being exploited?
There is no known exploitation of CVE-2018-14632 in the wild and no public exploit code.
Other vulnerabilities in Redhat Openshift Container Platform
- CVE-2020-27836 Missing authorization in cluster-ingress-operator
- CVE-2018-1085 Misconfiguration in openshift-ansible
- CVE-2026-54099 Privilege escalation in Red Hat OpenShift Container Platform 4
- CVE-2026-1784 Ose-cluster-ingress-operator: remote code execution through haproxy configuration injection
- CVE-2021-20182 Privilege escalation in openshift
Sources
Also known as GHSA-gxhv-3hwf-wjp9, GO-2021-0076, RHBA-2018:2652, RHSA-2018:2654, UBUNTU-CVE-2018-14632.