CVE-2016-9844 · cross-distro fix matrix

CVE-2016-9844: Buffer overflow in the zi_short function in zipinfo.c in Info-Zip UnZip 6.0 allows remote attackers to cause a denial of service (crash) via a large compression method value in the central directory file header.

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

Fix per ecosystem

Each block below is a distro release where CVE-2016-9844 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

unzip→ fixed in6.0-21urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y unzip
```

Debian bookworm

Source: Debian Security Tracker

unzip→ fixed in6.0-21urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y unzip
```

Debian trixie

Source: Debian Security Tracker

unzip→ fixed in6.0-21urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y unzip
```

Alpine v3.20

Source: Alpine secdb

unzip→ fixed in6.0-r3
```
apk update && apk add --upgrade unzip
```

Alpine v3.21

Source: Alpine secdb

unzip→ fixed in6.0-r3
```
apk update && apk add --upgrade unzip
```

Alpine edge

Source: Alpine secdb

unzip→ fixed in6.0-r3
```
apk update && apk add --upgrade unzip
```

Alpine v3.18

Source: Alpine secdb

unzip→ fixed in6.0-r3
```
apk update && apk add --upgrade unzip
```

Alpine v3.19

Source: Alpine secdb

unzip→ fixed in6.0-r3
```
apk update && apk add --upgrade unzip
```

Are YOU affected by CVE-2016-9844?

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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