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CVE-2006-1721 · cross-distro fix matrix

CVE-2006-1721: digestmd5.c in the CMU Cyrus Simple Authentication and Security Layer (SASL) library 2.1.18, and possibly other versions before 2.1.21, allows remote unauthenticated attackers to cause a denial of service (segmentation fault) via malformed inputs in DIGEST-MD5 negotiation.

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

Fix per ecosystem

Each block below is a distro release where CVE-2006-1721 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • cyrus-sasl2→ fixed in2.1.19.dfsg1-0.2urgency: low
    sudo apt-get install --only-upgrade -y cyrus-sasl2

Debian bookworm

Source: Debian Security Tracker

  • cyrus-sasl2→ fixed in2.1.19.dfsg1-0.2urgency: low
    sudo apt-get install --only-upgrade -y cyrus-sasl2

Debian trixie

Source: Debian Security Tracker

  • cyrus-sasl2→ fixed in2.1.19.dfsg1-0.2urgency: low
    sudo apt-get install --only-upgrade -y cyrus-sasl2
Are YOU affected by CVE-2006-1721?

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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