CVE-2020-13131 · cross-distro fix matrix

CVE-2020-13131: An issue was discovered in Yubico libykpiv before 2.1.0. lib/util.c in this library (which is included in yubico-piv-tool) does not properly check embedded length fields during device communication. A malicious PIV token can misreport the returned length fields during RSA key generation. This will c

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

Fix per ecosystem

Each block below is a distro release where CVE-2020-13131 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

yubico-piv-tool→ fixed in2.1.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y yubico-piv-tool
```

Debian bookworm

Source: Debian Security Tracker

yubico-piv-tool→ fixed in2.1.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y yubico-piv-tool
```

Debian trixie

Source: Debian Security Tracker

yubico-piv-tool→ fixed in2.1.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y yubico-piv-tool
```

Are YOU affected by CVE-2020-13131?

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.

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