Security readout for executives and security teams
Plain-English summary
This CVE is a denial-of-service risk in SUSE’s Repository Mirroring Tool. A user with low privileges can request migrations in a way that consumes excessive resources, potentially making RMT unavailable. The known impact is availability loss, not data theft or tampering.
Executive priority
Treat as a maintenance-priority availability issue. It is not documented as actively exploited, but RMT outages can disrupt repository mirroring and patch operations, so affected production RMT servers should be updated promptly.
Technical view
CVE-2019-18904 is CWE-400 uncontrolled resource consumption in SUSE rmt-server migration request handling. CVSS 3.1 is 6.5 with network attack vector, low complexity, low privileges required, no user interaction, and high availability impact only.
Likely exposure
Exposure is limited to systems running affected rmt-server packages on listed SUSE Linux Enterprise 15 variants or openSUSE Leap 15.1. Risk is higher where RMT is reachable by untrusted or broadly provisioned low-privileged users.
Exploitation context
The source bundle does not show CISA KEV listing, active exploitation, or public exploit evidence. Based on CVSS, exploitation requires network access and low privileges, and the expected result is denial of service against RMT.
Researcher notes
The evidence identifies affected products, fixed package thresholds, CVSS, and CWE. It does not provide root-cause detail, exploit telemetry, or compensating controls beyond updating. Avoid assuming broader SUSE exposure outside the listed rmt-server packages.
Mitigation direction
- Upgrade rmt-server to the fixed versions listed for the affected SUSE or openSUSE release.
- Review SUSE Bugzilla and vendor package guidance for the supported update path.
- Prioritize exposed RMT servers that support production patching or repository workflows.
- Limit RMT access to intended client networks where operationally feasible.
Validation and detection
- Inventory systems running rmt-server on the affected SUSE and openSUSE releases.
- Compare installed rmt-server versions against the fixed versions in the CVE description.
- Confirm RMT is not reachable by unnecessary users or networks.
- Check monitoring for RMT availability drops or abnormal migration request activity.
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-2019-18904 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
- Medium
- CVSS
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/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:L/UI:N/S:U/C:N/I:N/A:H2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://bugzilla.suse.com/show_bug.cgi?id=1160922CVE reference · x_refsource_CONFIRM
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.