CVE-2006-5974 · cross-distro fix matrix

CVE-2006-5974: fetchmail 6.3.5 and 6.3.6 before 6.3.6-rc4, when refusing a message delivered via the mda option, allows remote attackers to cause a denial of service (crash) via unknown vectors that trigger a NULL pointer dereference when calling the (1) ferror or (2) fflush functions.

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

Fix per ecosystem

Each block below is a distro release where CVE-2006-5974 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

fetchmail→ fixed in6.3.6-1urgency: low

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

Debian bookworm

Source: Debian Security Tracker

fetchmail→ fixed in6.3.6-1urgency: low

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

Debian trixie

Source: Debian Security Tracker

fetchmail→ fixed in6.3.6-1urgency: low

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

Are YOU affected by CVE-2006-5974?

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.

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