SB2023060714 - Denial of service in phpseclib
Published: June 7, 2023
Security Bulletin ID
SB2023060714
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Infinite loop (CVE-ID: CVE-2023-27560)
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 update from vendor's website.