UBUNTU-CVE-2016-4303

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Source
https://ubuntu.com/security/CVE-2016-4303
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-4303.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2016-4303
Upstream
Downstream
Related
Published
2016-09-26T14:59:00Z
Modified
2025-09-08T16:43:44Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 9.8 (Critical) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The parse_string function in cjson.c in the cJSON library mishandles UTF8/16 strings, which allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a non-hex character in a JSON string, which triggers a heap-based buffer overflow.

References

Affected packages

Ubuntu:Pro:16.04:LTS / iperf3

Package

Name
iperf3
Purl
pkg:deb/ubuntu/iperf3@3.0.11-1ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.0.11-1ubuntu0.1~esm1

Affected versions

3.*

3.0.11-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "3.0.11-1ubuntu0.1~esm1",
            "binary_name": "iperf3"
        },
        {
            "binary_version": "3.0.11-1ubuntu0.1~esm1",
            "binary_name": "libiperf-dev"
        },
        {
            "binary_version": "3.0.11-1ubuntu0.1~esm1",
            "binary_name": "libiperf0"
        }
    ]
}