CVE-2022-28805 · cross-distro fix matrix

CVE-2022-28805: singlevar in lparser.c in Lua from (including) 5.4.0 up to (excluding) 5.4.4 lacks a certain luaK_exp2anyregup call, leading to a heap-based buffer over-read that might affect a system that compiles untrusted Lua code.

Affects 7 Linux releases across 7 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2022-28805 has a known fix. Run the listed command on that distro to remediate.

Debian bookworm

Source: Debian Security Tracker

lua5.4→ fixed in5.4.4-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y lua5.4
```

Debian trixie

Source: Debian Security Tracker

lua5.4→ fixed in5.4.4-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y lua5.4
```

Alpine v3.20

Source: Alpine secdb

lua5.4→ fixed in5.4.4-r4
```
apk update && apk add --upgrade lua5.4
```

Alpine v3.21

Source: Alpine secdb

lua5.4→ fixed in5.4.4-r4
```
apk update && apk add --upgrade lua5.4
```

Alpine edge

Source: Alpine secdb

lua5.4→ fixed in5.4.4-r4
```
apk update && apk add --upgrade lua5.4
```

Alpine v3.18

Source: Alpine secdb

lua5.4→ fixed in5.4.4-r4
```
apk update && apk add --upgrade lua5.4
```

Alpine v3.19

Source: Alpine secdb

lua5.4→ fixed in5.4.4-r4
```
apk update && apk add --upgrade lua5.4
```

Are YOU affected by CVE-2022-28805?

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

Continuous monitoring beats manual checking

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