CVE-2016-4303: Buffer Overflow
First published: Mon Sep 26 2016(Updated: )
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.
Credit: cret@cert.org cret@cert.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| es iperf3 | >=3.0<3.0.12 | |
| es iperf3 | >=3.1<3.1.3 | |
| SUSE Package Hub for SUSE Linux Enterprise | =12 | |
| openSUSE | =42.1 | |
| openSUSE | =13.2 | |
| Debian GNU/Linux | =8.0 | |
| iperf3 project iperf3 | >=3.0<3.0.12 | |
| iperf3 project iperf3 | >=3.1<3.1.3 |
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Reference Links
- http://blog.talosintel.com/2016/06/esnet-vulnerability.html
- http://lists.opensuse.org/opensuse-updates/2016-08/msg00082.html
- http://lists.opensuse.org/opensuse-updates/2016-08/msg00090.html
- http://software.es.net/iperf/news.html#security-issue-iperf-3-1-3-iperf-3-0-12-released
- http://www.talosintelligence.com/reports/TALOS-2016-0164/
- https://github.com/esnet/iperf/commit/91f2fa59e8ed80dfbf400add0164ee0e508e412a
- https://lists.debian.org/debian-lts-announce/2020/01/msg00023.html
- https://raw.githubusercontent.com/esnet/security/master/cve-2016-4303/esnet-secadv-2016-0001.txt.asc
Frequently Asked Questions
What is the severity of CVE-2016-4303?
CVE-2016-4303 has a high severity rating due to its potential to cause denial of service and execute arbitrary code.
How do I fix CVE-2016-4303?
To resolve CVE-2016-4303, update the cJSON library to a version that has patched the buffer overflow issue.
Which software is affected by CVE-2016-4303?
CVE-2016-4303 affects versions of iperf3 prior to 3.0.12 and from 3.1 to 3.1.3, along with SUSE Linux Enterprise Package Hub and older openSUSE versions.
What type of vulnerability is CVE-2016-4303?
CVE-2016-4303 is a heap-based buffer overflow vulnerability caused by improper handling of UTF8/16 strings.
Can CVE-2016-4303 be exploited remotely?
Yes, CVE-2016-4303 can be exploited remotely by attackers sending malicious JSON strings.
- agent/references
- agent/type
- agent/remedy
- agent/weakness
- agent/severity
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/first-publish-date
- agent/event
- agent/last-modified-date
- agent/author
- agent/source
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- vendor/es
- canonical/es iperf3
- version/es iperf3/3.0
- version/es iperf3/3.1
- vendor/novell
- canonical/suse package hub for suse linux enterprise
- version/suse package hub for suse linux enterprise/12
- vendor/opensuse
- canonical/opensuse
- version/opensuse/42.1
- version/opensuse/13.2
- vendor/debian
- canonical/debian gnu/linux
- version/debian gnu/linux/8.0
- vendor/iperf3 project
- canonical/iperf3 project iperf3
- version/iperf3 project iperf3/3.0
- version/iperf3 project iperf3/3.1