CVE-2019-17023 · cross-distro fix matrix

CVE-2019-17023: After a HelloRetryRequest has been sent, the client may negotiate a lower protocol that TLS 1.3, resulting in an invalid state transition in the TLS State Machine. If the client gets into this state, incoming Application Data records will be ignored. This vulnerability affects Firefox < 72.

Affects 8 Linux releases across 15 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2019-17023 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

nss→ fixed in2:3.49-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y nss
```

Debian bookworm

Source: Debian Security Tracker

nss→ fixed in2:3.49-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y nss
```

Debian trixie

Source: Debian Security Tracker

nss→ fixed in2:3.49-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y nss
```

Alpine v3.20

Source: Alpine secdb

nss→ fixed in3.49-r0
```
apk update && apk add --upgrade nss
```
firefox→ fixed in71.0.1-r0
```
apk update && apk add --upgrade firefox
```

Alpine v3.21

Source: Alpine secdb

nss→ fixed in3.49-r0
```
apk update && apk add --upgrade nss
```
firefox→ fixed in71.0.1-r0
```
apk update && apk add --upgrade firefox
```

librewolf→ fixed in71.0.1-r0

apk update && apk add --upgrade librewolf

Alpine edge

Source: Alpine secdb

nss→ fixed in3.49-r0
```
apk update && apk add --upgrade nss
```
firefox→ fixed in71.0.1-r0
```
apk update && apk add --upgrade firefox
```

librewolf→ fixed in71.0.1-r0

apk update && apk add --upgrade librewolf

Alpine v3.18

Source: Alpine secdb

firefox→ fixed in71.0.1-r0
```
apk update && apk add --upgrade firefox
```
nss→ fixed in3.49-r0
```
apk update && apk add --upgrade nss
```

Alpine v3.19

Source: Alpine secdb

nss→ fixed in3.49-r0
```
apk update && apk add --upgrade nss
```
firefox→ fixed in71.0.1-r0
```
apk update && apk add --upgrade firefox
```

Are YOU affected by CVE-2019-17023?

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

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