CVE-2021-30836 · cross-distro fix matrix

CVE-2021-30836: An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 14.8 and iPadOS 14.8, tvOS 15, watchOS 8, iOS 15 and iPadOS 15. Processing a maliciously crafted audio file may disclose restricted memory.

Affects 6 Linux releases across 9 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2021-30836 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

webkit2gtk→ fixed in2.32.4-1~deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y webkit2gtk
```
wpewebkit→ fixed in2.32.4-1~deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y wpewebkit
```

Debian bookworm

Source: Debian Security Tracker

webkit2gtk→ fixed in2.32.4-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y webkit2gtk
```
wpewebkit→ fixed in2.32.4-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y wpewebkit
```

Debian trixie

Source: Debian Security Tracker

webkit2gtk→ fixed in2.32.4-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y webkit2gtk
```
wpewebkit→ fixed in2.32.4-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y wpewebkit
```

Alpine v3.20

Source: Alpine secdb

webkit2gtk→ fixed in2.32.4-r0

apk update && apk add --upgrade webkit2gtk

Alpine v3.18

Source: Alpine secdb

webkit2gtk→ fixed in2.32.4-r0

apk update && apk add --upgrade webkit2gtk

Alpine v3.19

Source: Alpine secdb

webkit2gtk→ fixed in2.32.4-r0

apk update && apk add --upgrade webkit2gtk

Are YOU affected by CVE-2021-30836?

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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