CVE-2022-37434 · cross-distro fix matrix

CVE-2022-37434: zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE: only applications that call inflateGetHeader are affected. Some common applications bundle the affected zlib source code but may be unable to call inflateGetHea

Affects 8 Linux releases across 15 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2022-37434 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

zlib→ fixed in1:1.2.11.dfsg-2+deb11u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y zlib
```

Debian bookworm

Source: Debian Security Tracker

libz-mingw-w64→ fixed in1.2.12+dfsg-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libz-mingw-w64
```
zlib→ fixed in1:1.2.11.dfsg-4.1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y zlib
```

Debian trixie

Source: Debian Security Tracker

libz-mingw-w64→ fixed in1.2.12+dfsg-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libz-mingw-w64
```
zlib→ fixed in1:1.2.11.dfsg-4.1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y zlib
```

Alpine v3.20

Source: Alpine secdb

zlib→ fixed in1.2.12-r2
```
apk update && apk add --upgrade zlib
```
zlib-ng→ fixed in2.0.6-r0
```
apk update && apk add --upgrade zlib-ng
```

Alpine v3.21

Source: Alpine secdb

zlib→ fixed in1.2.12-r2
```
apk update && apk add --upgrade zlib
```
zlib-ng→ fixed in2.0.6-r0
```
apk update && apk add --upgrade zlib-ng
```

Alpine edge

Source: Alpine secdb

zlib-ng→ fixed in2.0.6-r0
```
apk update && apk add --upgrade zlib-ng
```
zlib→ fixed in1.2.12-r2
```
apk update && apk add --upgrade zlib
```

Alpine v3.18

Source: Alpine secdb

zlib→ fixed in1.2.12-r2
```
apk update && apk add --upgrade zlib
```
zlib-ng→ fixed in2.0.6-r0
```
apk update && apk add --upgrade zlib-ng
```

Alpine v3.19

Source: Alpine secdb

zlib→ fixed in1.2.12-r2
```
apk update && apk add --upgrade zlib
```
zlib-ng→ fixed in2.0.6-r0
```
apk update && apk add --upgrade zlib-ng
```

Are YOU affected by CVE-2022-37434?

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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