Security readout for executives and security teams
Plain-English summary
CVE-2023-38200 is a denial-of-service flaw in the Keylime registrar. An unauthenticated remote attacker could consume all available SSL connections, making the registrar unavailable. This affects availability, not confidentiality or data integrity, based on the provided CVSS vector and description.
Executive priority
Prioritize this for environments that depend on Keylime for attestation workflows. Outage risk is the business driver: a successful attack could disrupt registrar availability without needing credentials.
Technical view
Keylime registrar SSL handling can block in a way that permits remote resource exhaustion. The flaw is classified as CWE-400 and scored CVSS 7.5: network reachable, low complexity, no privileges or user interaction, with high availability impact only.
Likely exposure
Exposure is most likely on Red Hat Enterprise Linux 9 systems running the affected keylime package version 0:6.5.2-6.el9_2, especially where the Keylime registrar SSL service is reachable from untrusted networks.
Exploitation context
The source bundle does not show CISA KEV listing or other cited evidence of active exploitation. The weakness is still operationally relevant because it is unauthenticated, network reachable, and targets service availability.
Researcher notes
The useful research focus is defensive validation: affected package presence, registrar reachability, and resource exhaustion telemetry. The provided sources identify the flaw and remediation advisory but do not provide complete fixed-version detail in the bundle.
Mitigation direction
- Apply vendor-provided Keylime updates from RHSA-2023:5080 where affected.
- Restrict registrar SSL access to trusted management networks.
- Review Red Hat CVE guidance before deploying compensating controls.
- Monitor registrar availability and connection exhaustion indicators.
Validation and detection
- Inventory RHEL 9 hosts running the keylime package.
- Check whether version 0:6.5.2-6.el9_2 is present.
- Confirm RHSA-2023:5080 or later vendor guidance is applied.
- Verify registrar SSL exposure is limited to expected sources.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-400: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2023-38200 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- RHSA-2023:5080CVE reference · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2023-38200CVE reference · vdb-entry, x_refsource_REDHAT
- RHBZ#2222692CVE reference · issue-tracking, x_refsource_REDHAT
- https://github.com/keylime/keylime/pull/1421CVE reference
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZIZZB5NHNCS5D2AEH3ZAO6OQC72IK7WS/CVE reference · x_transferred
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Uncontrolled Resource Consumption
Uncontrolled Resource Consumption represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.