CVE-2017-9798 · cross-distro fix matrix

CVE-2017-9798: Apache httpd allows remote attackers to read secret data from process memory if the Limit directive can be set in a user's .htaccess file, or if httpd.conf has certain misconfigurations, aka Optionsbleed. This affects the Apache HTTP Server through 2.2.34 and 2.4.x through 2.4.27. The attacker sends

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

Elevated exploitation risk

FIRST EPSS puts CVE-2017-9798's probability of exploitation in the next 30 days at 95% (100th percentile of all CVEs)— well above the noise floor. Prioritize it.

EPSS:95% · 30-day exploit probability100th percentile

Fix per ecosystem

Each block below is a distro release where CVE-2017-9798 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

apache2→ fixed in2.4.27-6urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y apache2
```

Debian bookworm

Source: Debian Security Tracker

apache2→ fixed in2.4.27-6urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y apache2
```

Debian trixie

Source: Debian Security Tracker

apache2→ fixed in2.4.27-6urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y apache2
```

Alpine v3.20

Source: Alpine secdb

apache2→ fixed in2.4.27-r1
```
apk update && apk add --upgrade apache2
```

Alpine v3.21

Source: Alpine secdb

apache2→ fixed in2.4.27-r1
```
apk update && apk add --upgrade apache2
```

Alpine edge

Source: Alpine secdb

apache2→ fixed in2.4.27-r1
```
apk update && apk add --upgrade apache2
```

Alpine v3.18

Source: Alpine secdb

apache2→ fixed in2.4.27-r1
```
apk update && apk add --upgrade apache2
```

Alpine v3.19

Source: Alpine secdb

apache2→ fixed in2.4.27-r1
```
apk update && apk add --upgrade apache2
```

Are YOU affected by CVE-2017-9798?

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-2017-9798dropped 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. From $9/mo, 14-day free trial, cancel anytime.

See StackPatch (from $9/mo)