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CVE-2019-11255

Kubernetes CSI volume snapshot, cloning and resizing features can result in unauthorized volume data access or mutation

MEDIUM
6.5
CVSS Score
Published: December 5, 2019 at 04:05 PM UTC
Updated: June 17, 2026 at 02:12 AM UTC
4 products affected across 2 vendorsOpenShift Container PlatformExternal SnapshotterExternal Resizer

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Severity
MEDIUM6.5
Exploit prediction
EPSS 2%

Description

Improper input validation in Kubernetes CSI sidecar containers for external-provisioner (<v0.4.3, <v1.0.2, v1.1, <v1.2.2, <v1.3.1), external-snapshotter (<v0.4.2, <v1.0.2, v1.1, <1.2.2), and external-resizer (v0.1, v0.2) could result in unauthorized PersistentVolume data access or volume mutation during snapshot, restore from snapshot, cloning and resizing operations.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

External Provisioner· Kubernetes
95%
v < 1.0.2v < 1.2.2v < 1.3.10.4.1 ≤ v ≤ 0.4.21.0.0 ≤ v ≤ 1.0.11.1.0 ≤ v ≤ 1.2.1v1.14 ≤ v < prior to 0.4.31.11.141.3.0
Affected range stops below 1.0.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.2.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.3.1, so it looks safe — our inference, not a vendor statement
Affected range stops below prior to 0.4.3, so it looks safe — our inference, not a vendor statement
External Resizer· Kubernetes
95%
0.1.0 ≤ v ≤ 0.2.00.10.2
External Snapshotter· Kubernetes
95%
v < 0.4.2v < 1.0.2v < 1.2.20.4.0 ≤ v ≤ 0.4.11.0.0 ≤ v ≤ 1.0.11.1.0 ≤ v ≤ 1.2.11.1
Affected range stops below 0.4.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.0.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.2.2, so it looks safe — our inference, not a vendor statement
OpenShift Container Platform· Red Hatcontainer
95%
3.114.14.2

References (7)

Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2019:4054
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2019:4096
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2019:4099
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2019:4225
x_refsource_CONFIRMMitigationThird Party Advisory
Source: [email protected]
https://github.com/kubernetes/kubernetes/issues/85233
Mailing Listx_refsource_MLIST
Source: [email protected]
https://groups.google.com/forum/#%21topic/kubernetes-security-announce/aXiYN0q4uIw
x_refsource_CONFIRM
Source: [email protected]
https://security.netapp.com/advisory/ntap-20200810-0003/

CVSS

6.5MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

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