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CVE-2016-4303 · cross-distro fix matrix

CVE-2016-4303: 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.

Affects 3 Linux releases across 3 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2016-4303 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • iperf3→ fixed in3.1.3-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y iperf3

Debian bookworm

Source: Debian Security Tracker

  • iperf3→ fixed in3.1.3-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y iperf3

Debian trixie

Source: Debian Security Tracker

  • iperf3→ fixed in3.1.3-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y iperf3
Are YOU affected by CVE-2016-4303?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash
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