StackPatch is liveSee product

Back to CVE digest
CVE-2019-12520 · cross-distro fix matrix

CVE-2019-12520: An issue was discovered in Squid through 4.7 and 5. When receiving a request, Squid checks its cache to see if it can serve up a response. It does this by making a MD5 hash of the absolute URL of the request. If found, it servers the request. The absolute URL can include the decoded UserInfo (userna

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

Fix per ecosystem

Each block below is a distro release where CVE-2019-12520 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • squid→ fixed in4.8-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y squid

Debian bookworm

Source: Debian Security Tracker

  • squid→ fixed in4.8-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y squid

Debian trixie

Source: Debian Security Tracker

  • squid→ fixed in4.8-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y squid
Are YOU affected by CVE-2019-12520?

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
Continuous monitoring beats manual checking

CVE-2019-12520dropped silently in your distro's update channel. Every new CVE is the same story. StackPatch runs the matcher hourly against all 5 sources and emails the exact remediation when something new applies to one of your servers. $99 lifetime, 50 founder seats, 30-day refund.

See StackPatch ($99 lifetime)