Vulnerability Details : CVE-2022-31076
KubeEdge is built upon Kubernetes and extends native containerized application orchestration and device management to hosts at the Edge. In affected versions a malicious message can crash CloudCore by triggering a nil-pointer dereference in the UDS Server. Since the UDS Server only communicates with the CSI Driver on the cloud side, the attack is limited to the local host network. As such, an attacker would already need to be an authenticated user of the Cloud. Additionally it will be affected only when users turn on the unixsocket switch in the config file cloudcore.yaml. This bug has been fixed in Kubeedge 1.11.0, 1.10.1, and 1.9.3. Users should update to these versions to resolve the issue. Users unable to upgrade should sisable the unixsocket switch of CloudHub in the config file cloudcore.yaml.
Exploit prediction scoring system (EPSS) score for CVE-2022-31076
Probability of exploitation activity in the next 30 days: 0.04%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 7 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2022-31076
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
---|---|---|---|---|---|
2.7
|
LOW | AV:A/AC:L/Au:S/C:N/I:N/A:P |
5.1
|
2.9
|
[email protected] |
5.7
|
MEDIUM | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
2.1
|
3.6
|
[email protected] |
4.2
|
MEDIUM | CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H |
0.5
|
3.6
|
[email protected] |
CWE ids for CVE-2022-31076
-
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.Assigned by: [email protected] (Primary)
References for CVE-2022-31076
-
https://github.com/kubeedge/kubeedge/security/advisories/GHSA-8f4f-v9x5-cg6j
Exploit;Third Party Advisory
-
https://github.com/kubeedge/kubeedge/pull/3899/commits/5d60ae9eabd6b6b7afe38758e19bbe8137664701
Patch;Third Party Advisory
Products affected by CVE-2022-31076
- cpe:2.3:a:linuxfoundation:kubeedge:*:*:*:*:*:*:*:*
- cpe:2.3:a:linuxfoundation:kubeedge:1.10.0:-:*:*:*:*:*:*
- cpe:2.3:a:linuxfoundation:kubeedge:1.10.0:beta0:*:*:*:*:*:*