CVE intelligence and bounded remediation

CVE-2022-38791 — Mariadb Mariadb security vulnerability

Medium CVSS 5.5

In MariaDB before 10.9.2, compress_write in extra/mariabackup/ds_compress.cc does not release data_mutex upon a stream write failure, which allows local users to trigger a deadlock.

Severity
Medium
CVSS
5.5 (3.1)
Published
2022-08-27
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-667

Affected products

  • mariadb / mariadb
  • mariadb / mariadb / 10.9.1
  • fedoraproject / fedora / 35
  • fedoraproject / fedora / 36
  • fedoraproject / fedora / 37

Showing 5 representative product identities from 10 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Race condition, TOCTOU, and lifecycle synchronization

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Check exposure

  • Map concurrent actors, shared state, lock boundaries, signals, callbacks, retries, and check-then-use sequences in the affected path.
  • Determine whether untrusted users can influence timing, object names, filesystem state, or repeated state transitions.
  • Identify clustered and multi-process behavior that repository-local tests may not represent.

Remediate safely

  • Make the sensitive state transition atomic or protect it with a consistently ordered synchronization primitive.
  • Perform authorization and invariant checks on the same authoritative object and transaction used for the operation.
  • Use unique private resources, safe ownership transfer, and idempotent operations; add deterministic concurrency regression tests.

Authoritative sources

Complete CVE record and remediation plan

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