CVE-2019-9515 · cross-distro fix matrix

CVE-2019-9515: Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent

Affects 7 Linux releases across 21 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2019-9515 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

h2o→ fixed in2.2.5+dfsg2-3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y h2o
```
trafficserver→ fixed in8.0.5+ds-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y trafficserver
```

Debian bookworm

Source: Debian Security Tracker

h2o→ fixed in2.2.5+dfsg2-3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y h2o
```
trafficserver→ fixed in8.0.5+ds-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y trafficserver
```

Alpine v3.20

Source: Alpine secdb

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

containerd→ fixed in1.2.9-r0

apk update && apk add --upgrade containerd

py3-twisted→ fixed in19.10.0-r0

apk update && apk add --upgrade py3-twisted

Alpine v3.21

Source: Alpine secdb

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

containerd→ fixed in1.2.9-r0

apk update && apk add --upgrade containerd

py3-twisted→ fixed in19.10.0-r0

apk update && apk add --upgrade py3-twisted

Alpine edge

Source: Alpine secdb

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

containerd→ fixed in1.2.9-r0

apk update && apk add --upgrade containerd

py3-twisted→ fixed in19.10.0-r0

apk update && apk add --upgrade py3-twisted

Alpine v3.18

Source: Alpine secdb

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

containerd→ fixed in1.2.9-r0

apk update && apk add --upgrade containerd

h2o→ fixed in2.2.6-r0
```
apk update && apk add --upgrade h2o
```

py3-twisted→ fixed in19.10.0-r0

apk update && apk add --upgrade py3-twisted

Alpine v3.19

Source: Alpine secdb

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

containerd→ fixed in1.2.9-r0

apk update && apk add --upgrade containerd

h2o→ fixed in2.2.6-r0
```
apk update && apk add --upgrade h2o
```

py3-twisted→ fixed in19.10.0-r0

apk update && apk add --upgrade py3-twisted

Are YOU affected by CVE-2019-9515?

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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