CVE-2021-39275 · cross-distro fix matrix

CVE-2021-39275: ap_escape_quotes() may write beyond the end of a buffer when given malicious input. No included modules pass untrusted data to these functions, but third-party / external modules may. This issue affects Apache HTTP Server 2.4.48 and earlier.

Affects 8 Linux releases across 8 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2021-39275 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

apache2→ fixed in2.4.51-1~deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y apache2
```

Debian bookworm

Source: Debian Security Tracker

apache2→ fixed in2.4.49-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y apache2
```

Debian trixie

Source: Debian Security Tracker

apache2→ fixed in2.4.49-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y apache2
```

Alpine v3.20

Source: Alpine secdb

apache2→ fixed in2.4.49-r0
```
apk update && apk add --upgrade apache2
```

Alpine v3.21

Source: Alpine secdb

apache2→ fixed in2.4.49-r0
```
apk update && apk add --upgrade apache2
```

Alpine edge

Source: Alpine secdb

apache2→ fixed in2.4.49-r0
```
apk update && apk add --upgrade apache2
```

Alpine v3.18

Source: Alpine secdb

apache2→ fixed in2.4.49-r0
```
apk update && apk add --upgrade apache2
```

Alpine v3.19

Source: Alpine secdb

apache2→ fixed in2.4.49-r0
```
apk update && apk add --upgrade apache2
```

Are YOU affected by CVE-2021-39275?

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

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