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.
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.
| Link | Tags |
|---|---|
| http://www.talosintelligence.com/reports/TALOS-2016-0164/ | third party advisory exploit |
| http://blog.talosintel.com/2016/06/esnet-vulnerability.html | third party advisory exploit |
| http://software.es.net/iperf/news.html#security-issue-iperf-3-1-3-iperf-3-0-12-released | third party advisory release notes |
| https://raw.githubusercontent.com/esnet/security/master/cve-2016-4303/esnet-secadv-2016-0001.txt.asc | third party advisory |
| https://github.com/esnet/iperf/commit/91f2fa59e8ed80dfbf400add0164ee0e508e412a | third party advisory patch |
| http://lists.opensuse.org/opensuse-updates/2016-08/msg00082.html | mailing list third party advisory vendor advisory |
| http://lists.opensuse.org/opensuse-updates/2016-08/msg00090.html | mailing list third party advisory vendor advisory |
| https://lists.debian.org/debian-lts-announce/2020/01/msg00023.html | third party advisory mailing list |