CVE-2021-36647 · cross-distro fix matrix

CVE-2021-36647: Use of a Broken or Risky Cryptographic Algorithm in the function mbedtls_mpi_exp_mod() in lignum.c in Mbed TLS Mbed TLS all versions before 3.0.0, 2.27.0 or 2.16.11 allows attackers with access to precise enough timing and memory access information (typically an untrusted operating system attacking

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-36647 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

mbedtls→ fixed in2.16.9-0.1+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y mbedtls
```

Debian bookworm

Source: Debian Security Tracker

mbedtls→ fixed in2.16.11-0.1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y mbedtls
```

Debian trixie

Source: Debian Security Tracker

mbedtls→ fixed in2.16.11-0.1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y mbedtls
```

Are YOU affected by CVE-2021-36647?

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