CVE-2019-9517 · cross-distro fix matrix

CVE-2019-9517: Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer can send without constraint; however, they leave the TCP window closed so the peer cannot actually write (many of) the byte

Affects 8 Linux releases across 13 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2019-9517 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

apache2→ fixed in2.4.41-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y apache2
```

Debian bookworm

Source: Debian Security Tracker

apache2→ fixed in2.4.41-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y apache2
```

Debian trixie

Source: Debian Security Tracker

apache2→ fixed in2.4.41-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y apache2
```

Alpine v3.20

Source: Alpine secdb

apache2→ fixed in2.4.41-r0
```
apk update && apk add --upgrade apache2
```
nodejs→ fixed in10.16.3-r0
```
apk update && apk add --upgrade nodejs
```

Alpine v3.21

Source: Alpine secdb

apache2→ fixed in2.4.41-r0
```
apk update && apk add --upgrade apache2
```
nodejs→ fixed in10.16.3-r0
```
apk update && apk add --upgrade nodejs
```

Alpine edge

Source: Alpine secdb

apache2→ fixed in2.4.41-r0
```
apk update && apk add --upgrade apache2
```
nodejs→ fixed in10.16.3-r0
```
apk update && apk add --upgrade nodejs
```

Alpine v3.18

Source: Alpine secdb

apache2→ fixed in2.4.41-r0
```
apk update && apk add --upgrade apache2
```
nodejs→ fixed in10.16.3-r0
```
apk update && apk add --upgrade nodejs
```

Alpine v3.19

Source: Alpine secdb

apache2→ fixed in2.4.41-r0
```
apk update && apk add --upgrade apache2
```
nodejs→ fixed in10.16.3-r0
```
apk update && apk add --upgrade nodejs
```

Are YOU affected by CVE-2019-9517?

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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