CVE-2020-15678 · cross-distro fix matrix

CVE-2020-15678: When recursing through graphical layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free. This occurs because the function APZCTreeManager::ComputeClippedCompositionBounds did not follow iterator invalidation rules. This vulnerability affects Firefox < 81

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

Fix per ecosystem

Each block below is a distro release where CVE-2020-15678 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

firefox-esr→ fixed in78.3.0esr-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y firefox-esr
```
thunderbird→ fixed in1:78.3.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y thunderbird
```

Debian bookworm

Source: Debian Security Tracker

firefox-esr→ fixed in78.3.0esr-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y firefox-esr
```
thunderbird→ fixed in1:78.3.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y thunderbird
```

Debian trixie

Source: Debian Security Tracker

firefox-esr→ fixed in78.3.0esr-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y firefox-esr
```
thunderbird→ fixed in1:78.3.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y thunderbird
```

Alpine v3.20

Source: Alpine secdb

firefox-esr→ fixed in78.3.0-r0

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

firefox→ fixed in81.0-r0
```
apk update && apk add --upgrade firefox
```

Alpine v3.21

Source: Alpine secdb

firefox-esr→ fixed in78.3.0-r0

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

firefox→ fixed in81.0-r0
```
apk update && apk add --upgrade firefox
```

librewolf→ fixed in81.0-r0

apk update && apk add --upgrade librewolf

Alpine edge

Source: Alpine secdb

firefox-esr→ fixed in78.3.0-r0

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

firefox→ fixed in81.0-r0
```
apk update && apk add --upgrade firefox
```

librewolf→ fixed in81.0-r0

apk update && apk add --upgrade librewolf

Alpine v3.18

Source: Alpine secdb

firefox-esr→ fixed in78.3.0-r0

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

firefox→ fixed in81.0-r0
```
apk update && apk add --upgrade firefox
```

Alpine v3.19

Source: Alpine secdb

firefox-esr→ fixed in78.3.0-r0

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

firefox→ fixed in81.0-r0
```
apk update && apk add --upgrade firefox
```

Are YOU affected by CVE-2020-15678?

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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