The "process-execute" and "process-spawn" procedures in CHICKEN Scheme used fixed-size…
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
- 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 "process-execute" and "process-spawn" procedures in CHICKEN Scheme used fixed-size buffers for holding the arguments and environment variables to use in its execve() call. This would allow user-supplied argument/environment variable lists to trigger a buffer overrun. This affects all releases of CHICKEN up to and including 4.11 (it will be fixed in 4.12 and 5.0, which are not yet released).
Why it matters now
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
Timeline
- 2026-10-02 Threatist record created from CVE-2016-6830
- 2026-10-03 Alias added: GHSA-x8qm-7p8g-qf87
References
More Chicken vulnerabilities
- TI-2022-22220 egg-compile.scm in CHICKEN 5.x before 5.3.1 allows arbitrary OS command execution during… CVSS 3.1CRITICAL 9.8
- TI-2014-05188 Buffer overflow in CHICKEN 4.9.0 and 4.9.0.1 may allow remote attackers to execute… CVSS 3.1CRITICAL 9.8
- TI-2012-05089 Chicken before 4.8.0 is susceptible to algorithmic complexity attacks related to hash table collisions. CVSS 3.1CRITICAL 9.8
- TI-2013-01796 OS command injection vulnerability in the "qs" procedure from the "utils" module in Chicken before 4.9.0. CVSS 3.1HIGH 8.8
- TI-2013-01846 Buffer overflow in chicken CVSS 3.1HIGH 8.8
- TI-2014-03061 Buffer overflow in the "read-u8vector!" procedure in the srfi-4 unit in CHICKEN stable… CVSS 2.0HIGH 7.5
Sources
- CVE-2016-6830 · CVE Program
- CVE-2016-6830 · NVD
- FIRST EPSS
- GHSA-x8qm-7p8g-qf87 · GitHub Advisory Database · CC BY 4.0
- CVE-2016-6830 · Red Hat security data · CC BY 4.0
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