libaspell.a in GNU Aspell before 0.60.8 has a buffer over-read for a string ending with a…
Priority MEDIUM 43CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
libaspell.a in GNU Aspell before 0.60.8 has a buffer over-read for a string ending with a single '\0' byte, if the encoding is set to ucs-2 or ucs-4 outside of the application, as demonstrated by the ASPELL_CONF environment variable.
Why it matters now
EPSS 0.01739 77th percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2019-20433
- 2026-10-03 Alias added: GHSA-qcm5-23xv-7r79
References
More GNU Aspell vulnerabilities
- TI-2019-13088 libaspell.a in GNU Aspell before 0.60.8 has a stack-based buffer over-read in… CVSS 3.1CRITICAL 9.1
- TI-2019-15191 objstack in GNU Aspell 0.60.8 has a heap-based buffer overflow in… CVSS 3.1HIGH 7.8
- TI-2004-00494 Multiple stack-based buffer overflows in the word-list-compress functionality in… CVSS 2.0HIGH 7.2
Sources
- CVE-2019-20433 · CVE Program
- CVE-2019-20433 · NVD
- FIRST EPSS
- GHSA-qcm5-23xv-7r79 · GitHub Advisory Database · CC BY 4.0
- CVE-2019-20433 · Red Hat security data · CC BY 4.0
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