CVE-2019-11759 · cross-distro fix matrix

CVE-2019-11759: An attacker could have caused 4 bytes of HMAC output to be written past the end of a buffer stored on the stack. This could be used by an attacker to execute arbitrary code or more likely lead to a crash. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

Affects 8 Linux releases across 18 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2019-11759 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

firefox-esr→ fixed in68.2.0esr-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y firefox-esr
```
thunderbird→ fixed in1:68.2.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y thunderbird
```

Debian bookworm

Source: Debian Security Tracker

firefox-esr→ fixed in68.2.0esr-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y firefox-esr
```
thunderbird→ fixed in1:68.2.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y thunderbird
```

Debian trixie

Source: Debian Security Tracker

firefox-esr→ fixed in68.2.0esr-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y firefox-esr
```
thunderbird→ fixed in1:68.2.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y thunderbird
```

Alpine v3.20

Source: Alpine secdb

firefox-esr→ fixed in68.2.0-r0

apk update && apk add --upgrade firefox-esr

firefox→ fixed in70.0-r0
```
apk update && apk add --upgrade firefox
```

Alpine v3.21

Source: Alpine secdb

firefox-esr→ fixed in68.2.0-r0

apk update && apk add --upgrade firefox-esr

firefox→ fixed in70.0-r0
```
apk update && apk add --upgrade firefox
```

librewolf→ fixed in70.0-r0

apk update && apk add --upgrade librewolf

Alpine edge

Source: Alpine secdb

firefox-esr→ fixed in68.2.0-r0

apk update && apk add --upgrade firefox-esr

firefox→ fixed in70.0-r0
```
apk update && apk add --upgrade firefox
```

librewolf→ fixed in70.0-r0

apk update && apk add --upgrade librewolf

Alpine v3.18

Source: Alpine secdb

firefox-esr→ fixed in68.2.0-r0

apk update && apk add --upgrade firefox-esr

firefox→ fixed in70.0-r0
```
apk update && apk add --upgrade firefox
```

Alpine v3.19

Source: Alpine secdb

firefox-esr→ fixed in68.2.0-r0

apk update && apk add --upgrade firefox-esr

firefox→ fixed in70.0-r0
```
apk update && apk add --upgrade firefox
```

Are YOU affected by CVE-2019-11759?

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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