Input validation error in phpseclib - CVE-2024-27354

Vulnerability identifier: #VU86826

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2024-27354

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in isPrime() and randomPrime() functions. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

phpseclib
snipe-it
Ubuntu
Fedora
php-phpseclib (Ubuntu package)
php-phpseclib

Install updates from vendor's website.

phpseclib - addressed in versions 1.0.23, 2.0.47, 3.0.36
snipe-it - update to 6.3.3
php-phpseclib (Ubuntu package) - addressed in versions 1.0.1-3ubuntu0.1+esm1, 1.0.9-1ubuntu0.1~esm1, 1.0.18-2ubuntu0.1~esm1, 1.0.20-1ubuntu0.1~esm1, 2.0.1-1ubuntu0.1~esm2, 2.0.9-1ubuntu0.1~esm2, 2.0.23-2ubuntu0.1~esm2, 2.0.36-1ubuntu0.1~esm2, 3.0.13-1ubuntu0.1~esm1
php-phpseclib - addressed in versions 2.0.48-1.fc40, 2.0.48-1.fc41

• https://github.com/phpseclib/phpseclib/releases/tag/3.0.36
• https://github.com/phpseclib/phpseclib/releases/tag/2.0.47
• https://github.com/phpseclib/phpseclib/releases/tag/1.0.23
• https://github.com/phpseclib/phpseclib/security/advisories/GHSA-2528-jw5q-ww88

• Multiple vulnerabilities in phpseclib
• Multiple vulnerabilities in snipe-it
• Fedora 41 update for php-phpseclib
• Fedora 40 update for php-phpseclib
• Ubuntu update for php-phpseclib