CVE-2024-27354 · cross-distro fix matrix

CVE-2024-27354: An issue was discovered in phpseclib 1.x before 1.0.23, 2.x before 2.0.47, and 3.x before 3.0.36. An attacker can construct a malformed certificate containing an extremely large prime to cause a denial of service (CPU consumption for an isPrime primality check). NOTE: this issue was introduced when

Affects 3 Linux releases across 8 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2024-27354 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

php-phpseclib→ fixed in2.0.30-2+deb11u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y php-phpseclib
```
phpseclib→ fixed in1.0.19-3+deb11u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y phpseclib
```

Debian bookworm

Source: Debian Security Tracker

php-phpseclib→ fixed in2.0.42-1+deb12u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y php-phpseclib
```
php-phpseclib3→ fixed in3.0.19-1+deb12u3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y php-phpseclib3
```
phpseclib→ fixed in1.0.20-1+deb12u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y phpseclib
```

Debian trixie

Source: Debian Security Tracker

php-phpseclib→ fixed in2.0.47-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y php-phpseclib
```
php-phpseclib3→ fixed in3.0.36-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y php-phpseclib3
```
phpseclib→ fixed in1.0.23-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y phpseclib
```

Are YOU affected by CVE-2024-27354?

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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