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CVE-2022-27240 · cross-distro fix matrix

CVE-2022-27240: scheme/webauthn.c in Glewlwyd SSO server 2.x before 2.6.2 has a buffer overflow associated with a webauthn assertion.

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

Fix per ecosystem

Each block below is a distro release where CVE-2022-27240 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • glewlwyd→ fixed in2.5.2-2+deb11u3urgency: not yet assigned
    sudo apt-get install --only-upgrade -y glewlwyd

Debian bookworm

Source: Debian Security Tracker

  • glewlwyd→ fixed in2.6.1-2urgency: not yet assigned
    sudo apt-get install --only-upgrade -y glewlwyd

Debian trixie

Source: Debian Security Tracker

  • glewlwyd→ fixed in2.6.1-2urgency: not yet assigned
    sudo apt-get install --only-upgrade -y glewlwyd
Are YOU affected by CVE-2022-27240?

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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