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CVE-2019-11555 · cross-distro fix matrix

CVE-2019-11555: The EAP-pwd implementation in hostapd (EAP server) before 2.8 and wpa_supplicant (EAP peer) before 2.8 does not validate fragmentation reassembly state properly for a case where an unexpected fragment could be received. This could result in process termination due to a NULL pointer dereference (deni

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

Fix per ecosystem

Each block below is a distro release where CVE-2019-11555 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

wpa→ fixed in2:2.7+git20190128+0c1e29f-5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y wpa
```

Debian bookworm

Source: Debian Security Tracker

wpa→ fixed in2:2.7+git20190128+0c1e29f-5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y wpa
```

Debian trixie

Source: Debian Security Tracker

wpa→ fixed in2:2.7+git20190128+0c1e29f-5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y wpa
```

Alpine v3.20

Source: Alpine secdb

hostapd→ fixed in2.8-r0
```
apk update && apk add --upgrade hostapd
```

wpa_supplicant→ fixed in2.7-r3

apk update && apk add --upgrade wpa_supplicant

Alpine v3.21

Source: Alpine secdb

hostapd→ fixed in2.8-r0
```
apk update && apk add --upgrade hostapd
```

wpa_supplicant→ fixed in2.7-r3

apk update && apk add --upgrade wpa_supplicant

Alpine edge

Source: Alpine secdb

hostapd→ fixed in2.8-r0
```
apk update && apk add --upgrade hostapd
```

wpa_supplicant→ fixed in2.7-r3

apk update && apk add --upgrade wpa_supplicant

Alpine v3.18

Source: Alpine secdb

hostapd→ fixed in2.8-r0
```
apk update && apk add --upgrade hostapd
```

wpa_supplicant→ fixed in2.7-r3

apk update && apk add --upgrade wpa_supplicant

Alpine v3.19

Source: Alpine secdb

hostapd→ fixed in2.8-r0
```
apk update && apk add --upgrade hostapd
```

wpa_supplicant→ fixed in2.7-r3

apk update && apk add --upgrade wpa_supplicant

Are YOU affected by CVE-2019-11555?

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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Continuous monitoring beats manual checking

CVE-2019-11555dropped 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. $99 lifetime, 50 founder seats, 30-day refund.

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