CVE-2020-12457 · cross-distro fix matrix

CVE-2020-12457: An issue was discovered in wolfSSL before 4.5.0. It mishandles the change_cipher_spec (CCS) message processing logic for TLS 1.3. If an attacker sends ChangeCipherSpec messages in a crafted way involving more than one in a row, the server becomes stuck in the ProcessReply() loop, i.e., a denial of s

Affects 3 Linux releases across 3 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2020-12457 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

wolfssl→ fixed in4.5.0+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y wolfssl
```

Debian bookworm

Source: Debian Security Tracker

wolfssl→ fixed in4.5.0+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y wolfssl
```

Debian trixie

Source: Debian Security Tracker

wolfssl→ fixed in4.5.0+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y wolfssl
```

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