SB20250529165 - Ubuntu update for php-phpseclib
Published: May 29, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) Improper verification of cryptographic signature (CVE-ID: CVE-2021-30130)
The vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to improper verification of RSA PKCS#1 v1.5 signature. A remote attacker can perform MitM attack.
2) Input validation error (CVE-ID: CVE-2023-52892)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to an error when handling some characters in Subject Alternative Name fields in TLS certificates. These fields are incorrectly allowed to have a special meaning in regular expressions (such as a + wildcard), leading to name confusion in X.509 certificate host verification.
3) Input validation error (CVE-ID: CVE-2024-27354)
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.
4) Input validation error (CVE-ID: CVE-2024-27355)
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. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.