CVE intelligence and bounded remediation

CVE-2019-0211 — Apache HTTP Server Privilege Escalation Vulnerability

High CVSS 7.8 CISA KEV

In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent process (usually root) by manipulating the scoreboard. Non-Unix systems are not affected.

Severity
High
CVSS
7.8 (3.1)
Published
2019-04-08
CISA KEV
Known exploited
Ecosystem
software/application
Weaknesses
CWE-416

Affected products

  • apache / http_server
  • fedoraproject / fedora / 28
  • fedoraproject / fedora / 29
  • fedoraproject / fedora / 30
  • canonical / ubuntu_linux / 14.04
  • canonical / ubuntu_linux / 16.04

Showing 6 representative product identities from 68 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Use-after-free, double free, and expired resource use

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

Check exposure

  • Trace ownership, references, callbacks, asynchronous tasks, and teardown paths around the affected object or resource.
  • Identify reachable inputs and timing or state transitions that can release the object while references remain.
  • Confirm affected builds, allocators, feature flags, architectures, and process privileges.

Remediate safely

  • Apply the maintained ownership or lifetime fix and rebuild all artifacts containing the affected native code.
  • Use explicit ownership, safe reference management, cancellation and join semantics, and idempotent teardown.
  • Add deterministic lifetime tests plus isolated sanitizer and concurrency coverage for shutdown and error paths.

Authoritative sources

Complete CVE record and remediation plan

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