The asn1f_lookup_symbol_impl function in asn1fix_retrieve.c in libasn1fix.a in asn1c…
Priority LOW 31CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
The asn1f_lookup_symbol_impl function in asn1fix_retrieve.c in libasn1fix.a in asn1c 0.9.28 allows remote attackers to cause a denial of service (segmentation fault) via a crafted .asn1 file.
Why it matters now
EPSS 0.0108 65th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
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
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:asn1c_project:asn1c:0.9.28:*:*:*:*:*:*:* | 0.9.28 | Vulnerable | Asn1c Project |
- cpe:2.3:a:asn1c_project:asn1c:0.9.28:*:*:*:*:*:*:* Versions 0.9.28 Vulnerable ·Asn1c Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2017-12966
- 2026-10-03 Alias added: GHSA-968h-hqr4-4xp2
References
More Asn1c Project Asn1c vulnerabilities
- TI-2020-14727 An issue was discovered in asn1c through v0.9.28. CVSS 3.1MEDIUM 5.5
- TI-2020-14726 Stack-based buffer overflow vulnerability in asn1c through v0.9.28 via function genhash_get in genhash.c. CVSS 3.1MEDIUM 5.5
Sources
- CVE-2017-12966 · CVE Program
- CVE-2017-12966 · NVD
- FIRST EPSS
- GHSA-968h-hqr4-4xp2 · GitHub Advisory Database · CC BY 4.0
- CVE-2017-12966 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences