#VU77053 Infinite loop in phpseclib - CVE-2023-27560
Published: June 7, 2023
Vulnerability identifier: #VU77053
Vulnerability risk: Medium
CVSSv4.0: 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/E:U/U:Green
CVE-ID: CVE-2023-27560
CWE-ID: CWE-835
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
phpseclib
phpseclib
Software vendor:
phpseclib
phpseclib
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop with composite primefields within Math/PrimeField.php. A remote attacker can consume all available system resources and cause denial of service conditions.
Remediation
Install updates from vendor's website.