Stack-based buffer overflow in liblouis
Priority MEDIUM 45CWE-121Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-121 and the CVSS impact.
Summary
A missing patch for a stack-based buffer overflow in findTable() was found in Red Hat version of liblouis before 2.5.4. An attacker could cause a denial of service condition or potentially even arbitrary code execution.
Why it matters now
EPSS 0.01517 74th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Liblouis | liblouis | 2.5.4 | — | No fix listed | CNA |
- liblouis VendorLiblouis Affected 2.5.4 Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:liblouis:liblouis:*:*:*:*:*:*:*:* | before 2.5.4 | Vulnerable | Liblouis |
| cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* | 7.4 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:* | 7.4 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* | 7.5 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
- cpe:2.3:a:liblouis:liblouis:*:*:*:*:*:*:*:* Versions before 2.5.4 Vulnerable ·Liblouis
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
Remediation
Red Hat 1 advisory
- RHSA-2017:3384 Released 2017-12-05 · Red Hat rating Moderateliblouis security update
- Red Hat Enterprise Linux Client (v. 7) liblouis-2.5.2-12.el7_4, liblouis-python-2.5.2-12.el7_4
- Red Hat Enterprise Linux Client Optional (v. 7) liblouis-devel-2.5.2-12.el7_4, liblouis-doc-2.5.2-12.el7_4, liblouis-utils-2.5.2-12.el7_4
- Red Hat Enterprise Linux Server (v. 7) liblouis-2.5.2-12.el7_4, liblouis-2.5.2-12.el7_4.ppc, liblouis-python-2.5.2-12.el7_4
- Red Hat Enterprise Linux Server Optional (v. 7) liblouis-devel-2.5.2-12.el7_4, liblouis-devel-2.5.2-12.el7_4.ppc, liblouis-doc-2.5.2-12.el7_4 +1
- Red Hat Enterprise Linux Workstation (v. 7) liblouis-2.5.2-12.el7_4, liblouis-python-2.5.2-12.el7_4
- Red Hat Enterprise Linux Workstation Optional (v. 7) liblouis-devel-2.5.2-12.el7_4, liblouis-doc-2.5.2-12.el7_4, liblouis-utils-2.5.2-12.el7_4
- Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) liblouis-2.5.2-12.el7_4, liblouis-python-2.5.2-12.el7_4
- Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) liblouis-devel-2.5.2-12.el7_4, liblouis-doc-2.5.2-12.el7_4, liblouis-utils-2.5.2-12.el7_4
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2017:3384 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2017:3384 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2017:3384 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2017:3384 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2017:3384 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2017:3384 |
| Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) | Fixed | RHSA-2017:3384 |
| Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) | Fixed | RHSA-2017:3384 |
Timeline
- 2026-10-02 Threatist record created from CVE-2017-15101
- 2026-10-03 Alias added: GHSA-hxf5-6w8g-jf87
References
More Liblouis vulnerabilities
- TI-2023-11762 Buffer Overflow vulnerability found in Liblouis v.3.24.0 allows a remote attacker to… CVSS 3.1HIGH 7.5
- TI-2018-08139 An issue was discovered in Liblouis 3.5.0. CVSS 3.0CRITICAL 9.8
- TI-2018-08166 Liblouis 3.5.0 has a stack-based Buffer Overflow in the function parseChars in compileTranslationTable.c. CVSS 3.0HIGH 8.8
- TI-2018-08283 Liblouis 3.5.0 has a Segmentation fault in lou_logPrint in logging.c. CVSS 3.0HIGH 8.8
- TI-2023-11761 Buffer Overflow vulnerability found in Liblouis v.3.24.0 allows a remote attacker to… CVSS 3.1HIGH 7.5
- TI-2018-08665 Liblouis 3.6.0 has a stack-based Buffer Overflow in the function parseChars in… CVSS 3.0HIGH 8.8
Sources
- CVE-2017-15101 · CVE Program
- CVE-2017-15101 · NVD
- FIRST EPSS
- GHSA-hxf5-6w8g-jf87 · GitHub Advisory Database · CC BY 4.0
- CVE-2017-15101 · Red Hat security data · CC BY 4.0
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