CVE-2021-34813 · cross-distro fix matrix

CVE-2021-34813: Matrix libolm before 3.2.3 allows a malicious Matrix homeserver to crash a client (while it is attempting to retrieve an Olm encrypted room key backup from the homeserver) because olm_pk_decrypt has a stack-based buffer overflow. Remote code execution might be possible for some nonstandard build con

Affects 2 Linux releases across 2 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2021-34813 has a known fix. Run the listed command on that distro to remediate.

Debian bookworm

Source: Debian Security Tracker

olm→ fixed in3.2.3~dfsg-3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y olm
```

Debian trixie

Source: Debian Security Tracker

olm→ fixed in3.2.3~dfsg-3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y olm
```

Are YOU affected by CVE-2021-34813?

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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