CVE-2019-6706 · cross-distro fix matrix

CVE-2019-6706: Lua 5.3.5 has a use-after-free in lua_upvaluejoin in lapi.c. For example, a crash outcome might be achieved by an attacker who is able to trigger a debug.upvaluejoin call in which the arguments have certain relationships.

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

Fix per ecosystem

Each block below is a distro release where CVE-2019-6706 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

lua5.3→ fixed in5.3.3-1.1+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y lua5.3
```

Debian bookworm

Source: Debian Security Tracker

lua5.3→ fixed in5.3.6-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y lua5.3
```

Debian trixie

Source: Debian Security Tracker

lua5.3→ fixed in5.3.6-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y lua5.3
```

Alpine v3.20

Source: Alpine secdb

lua5.3→ fixed in5.3.5-r2
```
apk update && apk add --upgrade lua5.3
```
lua5.4→ fixed in5.3.5-r2
```
apk update && apk add --upgrade lua5.4
```

Alpine v3.21

Source: Alpine secdb

lua5.3→ fixed in5.3.5-r2
```
apk update && apk add --upgrade lua5.3
```
lua5.4→ fixed in5.3.5-r2
```
apk update && apk add --upgrade lua5.4
```

Alpine edge

Source: Alpine secdb

lua5.3→ fixed in5.3.5-r2
```
apk update && apk add --upgrade lua5.3
```
lua5.4→ fixed in5.3.5-r2
```
apk update && apk add --upgrade lua5.4
```

Alpine v3.18

Source: Alpine secdb

lua5.3→ fixed in5.3.5-r2
```
apk update && apk add --upgrade lua5.3
```
lua5.4→ fixed in5.3.5-r2
```
apk update && apk add --upgrade lua5.4
```

Alpine v3.19

Source: Alpine secdb

lua5.3→ fixed in5.3.5-r2
```
apk update && apk add --upgrade lua5.3
```
lua5.4→ fixed in5.3.5-r2
```
apk update && apk add --upgrade lua5.4
```

Are YOU affected by CVE-2019-6706?

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

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