CVE-2020-23856 · cross-distro fix matrix

CVE-2020-23856: Use-after-Free vulnerability in cflow 1.6 in the void call(char *name, int line) function at src/parser.c, which could cause a denial of service via the pointer variable caller->callee.

Affects 2 Linux releases across 2 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2020-23856 has a known fix. Run the listed command on that distro to remediate.

Debian bookworm

Source: Debian Security Tracker

cflow→ fixed in1:1.6-6urgency: unimportant

sudo apt-get install --only-upgrade -y cflow

Debian trixie

Source: Debian Security Tracker

cflow→ fixed in1:1.6-6urgency: unimportant

sudo apt-get install --only-upgrade -y cflow

Are YOU affected by CVE-2020-23856?

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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