CVE-2009-0478 · cross-distro fix matrix

CVE-2009-0478: Squid 2.7 to 2.7.STABLE5, 3.0 to 3.0.STABLE12, and 3.1 to 3.1.0.4 allows remote attackers to cause a denial of service via an HTTP request with an invalid version number, which triggers a reachable assertion in (1) HttpMsg.c and (2) HttpStatusLine.c.

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

Fix per ecosystem

Each block below is a distro release where CVE-2009-0478 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

squid→ fixed in2.7.STABLE3-4.1urgency: medium
```
sudo apt-get install --only-upgrade -y squid
```

Debian bookworm

Source: Debian Security Tracker

squid→ fixed in2.7.STABLE3-4.1urgency: medium
```
sudo apt-get install --only-upgrade -y squid
```

Debian trixie

Source: Debian Security Tracker

squid→ fixed in2.7.STABLE3-4.1urgency: medium
```
sudo apt-get install --only-upgrade -y squid
```

Are YOU affected by CVE-2009-0478?

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

Form-based quickscan View on NVD

Continuous monitoring beats manual checking

CVE-2009-0478dropped 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)