CVE-2016-9843 · cross-distro fix matrix

CVE-2016-9843: The crc32_big function in crc32.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving big-endian CRC calculation.

Affects 8 Linux releases across 11 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2016-9843 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

rsync→ fixed in3.1.3-6urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y rsync
```
zlib→ fixed in1:1.2.8.dfsg-3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y zlib
```

Debian bookworm

Source: Debian Security Tracker

rsync→ fixed in3.1.3-6urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y rsync
```
zlib→ fixed in1:1.2.8.dfsg-3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y zlib
```

Debian trixie

Source: Debian Security Tracker

rsync→ fixed in3.1.3-6urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y rsync
```
zlib→ fixed in1:1.2.8.dfsg-3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y zlib
```

Alpine v3.20

Source: Alpine secdb

mariadb→ fixed in10.3.11-r0
```
apk update && apk add --upgrade mariadb
```

Alpine v3.21

Source: Alpine secdb

mariadb→ fixed in10.3.11-r0
```
apk update && apk add --upgrade mariadb
```

Alpine edge

Source: Alpine secdb

mariadb→ fixed in10.3.11-r0
```
apk update && apk add --upgrade mariadb
```

Alpine v3.18

Source: Alpine secdb

mariadb→ fixed in10.3.11-r0
```
apk update && apk add --upgrade mariadb
```

Alpine v3.19

Source: Alpine secdb

mariadb→ fixed in10.3.11-r0
```
apk update && apk add --upgrade mariadb
```

Are YOU affected by CVE-2016-9843?

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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