Security readout for executives and security teams
Plain-English summary
CVE-2017-15101 is a stack buffer overflow in Red Hat's liblouis before 2.5.4. A user opening or processing malicious input through affected liblouis functionality could crash the process or potentially allow code execution. It is high severity, but the provided sources do not show active exploitation.
Executive priority
Treat as a high-priority patching item where liblouis is installed in user-facing or document-processing workflows. Business urgency is lower on systems without liblouis or without untrusted content processing, but affected Red Hat packages should still be remediated through normal security maintenance.
Technical view
The flaw is CWE-121 in findTable(), caused by a missing patch in the Red Hat version of liblouis before 2.5.4. CVSS 3.0 is 7.8 with local attack vector, low complexity, no privileges, and required user interaction, with high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely on Red Hat systems with vulnerable liblouis packages, especially where accessibility, Braille translation, or document-processing workflows process untrusted files or table references. The bundle does not enumerate exact affected Red Hat product versions beyond the RHSA reference.
Exploitation context
The CVSS vector requires local interaction and user action. The source bundle says exploitation could cause denial of service or potentially arbitrary code execution. KEV is false, and no provided source states active exploitation.
Researcher notes
The provided evidence is limited to the CVE description, CVSS, CWE, Red Hat Bugzilla, and RHSA reference. Do not assume internet exposure or active exploitation. Focus validation on package provenance, Red Hat advisory applicability, and workflows that pass untrusted content to liblouis.
Mitigation direction
- Review Red Hat advisory RHSA-2017:3384 for affected packages and fixed versions.
- Update vulnerable Red Hat liblouis packages through vendor-supported channels.
- If patching is delayed, reduce processing of untrusted files through liblouis-dependent workflows.
- Monitor Red Hat Bugzilla and advisory pages for any revised guidance.
Validation and detection
- Inventory systems for installed liblouis packages and versions.
- Compare installed package builds against RHSA-2017:3384 guidance.
- Identify applications or services that invoke liblouis on user-controlled content.
- Confirm patched systems no longer report vulnerable liblouis package builds.
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-121: 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2017-15101 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
- 7.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
7.8HighVector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15101CVE reference · x_refsource_CONFIRM
- RHSA-2017:3384CVE reference · vendor-advisory, x_refsource_REDHAT
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.
Stack-based Buffer Overflow
Stack-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.