CVE intelligence and bounded remediation

CVE-2020-8832 — Canonical Ubuntu Linux security vulnerability

Medium CVSS 5.5

The fix for the Linux kernel in Ubuntu 18.04 LTS for CVE-2019-14615 ("The Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors.") was discovered to be incomplete, meaning that in versions of the kernel before 4.15.0-91.92, an attacker could use this vulnerability to expose sensitive information.

Severity
Medium
CVSS
5.5 (3.1)
Published
2020-04-10
CISA KEV
Not currently listed
Ecosystem
linux/kernel
Weaknesses
CWE-200

Affected products

  • canonical / ubuntu_linux / 18.04
  • netapp / cloud_backup
  • netapp / solidfire_&_hci_management_node
  • netapp / steelstore_cloud_integrated_storage
  • netapp / aff_8300_firmware
  • netapp / aff_8700_firmware

Showing 6 representative product identities from 35 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Information disclosure and sensitive data exposure

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Trace sensitive data through responses, errors, logs, metrics, traces, caches, exports, files, backups, and client bundles.
  • Identify affected subjects, tenants, retention windows, access controls, and downstream copies without opening unnecessary sensitive records.
  • Review metadata, timing, status, length, and existence signals as well as direct content disclosure.

Remediate safely

  • Minimize collection and output, apply field-level authorization and redaction at a centralized boundary, and return generic external errors.
  • Remove secrets and sensitive data from logs, artifacts, URLs, caches, and client-side bundles; rotate credentials that may have been exposed.
  • Update the affected component and add synthetic-data tests for response, error, observability, and export paths.

Authoritative sources

Complete CVE record and remediation plan

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