CVE-2023-43786 · cross-distro fix matrix

CVE-2023-43786: A vulnerability was found in libX11 due to an infinite loop within the PutSubImage() function. This flaw allows a local user to consume all available system resources and cause a denial of service condition.

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

Fix per ecosystem

Each block below is a distro release where CVE-2023-43786 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

libx11→ fixed in2:1.7.2-1+deb11u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libx11
```

Debian bookworm

Source: Debian Security Tracker

libx11→ fixed in2:1.8.4-2+deb12u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libx11
```

Debian trixie

Source: Debian Security Tracker

libx11→ fixed in2:1.8.7-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libx11
```

Alpine v3.20

Source: Alpine secdb

libx11→ fixed in1.8.7-r0
```
apk update && apk add --upgrade libx11
```

Alpine v3.21

Source: Alpine secdb

libx11→ fixed in1.8.7-r0
```
apk update && apk add --upgrade libx11
```

Alpine edge

Source: Alpine secdb

libx11→ fixed in1.8.7-r0
```
apk update && apk add --upgrade libx11
```

Alpine v3.18

Source: Alpine secdb

libx11→ fixed in1.8.7-r0
```
apk update && apk add --upgrade libx11
```

Alpine v3.19

Source: Alpine secdb

libx11→ fixed in1.8.7-r0
```
apk update && apk add --upgrade libx11
```

Are YOU affected by CVE-2023-43786?

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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