Integer overflow in the rtxMemHeapAlloc function in asn1rt_a.lib in Objective Systems…
Priority MEDIUM 54Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
Integer overflow in the rtxMemHeapAlloc function in asn1rt_a.lib in Objective Systems ASN1C for C/C++ before 7.0.2 allows context-dependent attackers to execute arbitrary code or cause a denial of service (heap-based buffer overflow), on a system running an application compiled by ASN1C, via crafted ASN.1 data.
Why it matters now
EPSS 0.10064 95th percentileScored 2026-11-07
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:objective_systems:asn1c:*:*:*:*:*:*:*:* | up to 7.0.1 | Vulnerable | Objective Systems |
- cpe:2.3:a:objective_systems:asn1c:*:*:*:*:*:*:*:* Versions up to 7.0.1 Vulnerable ·Objective Systems
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2016-5080
- 2026-10-03 Alias added: GHSA-8c5g-jh8w-2ffj
References
Advisory 4
- https://github.com/programa-stic/security-advisories/tree/master/ObjSys/CVE-2016-5080
- VU#790839
- https://www.ncsc.nl/dienstverlening/response-op-dreigingen-en-incidenten/beveiligingsadviezen/NCSC-2016-0650+1.00+Kwetsbaarheid+verholpen+in+ASN1C.html
- 20160721 Vulnerability in Objective Systems ASN1C Compiler Affecting Cisco Products
Other 4
- https://source.android.com/security/bulletin/2017-01-01.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- http://packetstormsecurity.com/files/137970/Objective-Systems-Inc.-ASN1C-For-C-C-Heap-Memory-Corruption.html
- 20160725 CVE-2016-5080: Memory corruption in code generated by Objective Systems Inc. ASN1C compiler for C/C++ [STIC-2016-0603]
Sources
- CVE-2016-5080 · CVE Program
- CVE-2016-5080 · NVD
- FIRST EPSS
- GHSA-8c5g-jh8w-2ffj · GitHub Advisory Database · CC BY 4.0
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