USN-7404-1: phpseclib vulnerabilities
It was discovered that phpseclib did not correctly handle RSA PKCS#1 v1.5 signature verification. An attacker could possibly use this issue to bypass authentication. This issue only affected Ubuntu 20.04 LTS. (CVE-2021-30130) It was discovered that phpseclib did not correctly handle certain characters in certain TLS fields, which could lead to name confusion. An attacker could possibly use this issue to bypass authentication. (CVE-2023-52892) It was discovered that phpseclib incorrectly limited the size of prime numbers generated by isPrime. An attacker could possibly use this issue to cause a denial of service. (CVE-2024-27354) It was discovered that phpseclib did not correctly handle processing the ASN.1 object identifier of a certificate. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2024-27355)
Affected Software
Event History
Child vulnerabilities
Contains the following vulnerabilities.
Frequently Asked Questions
What is the severity of USN-7404-1?
The severity of USN-7404-1 is considered to be high due to potential authentication bypass vulnerabilities.
How do I fix USN-7404-1?
To fix USN-7404-1, ensure you upgrade to the corresponding patched versions of phpseclib for your Ubuntu release.
Which versions of phpseclib are affected by USN-7404-1?
USN-7404-1 affects phpseclib versions prior to the patched versions listed in the advisory for Ubuntu 20.04 LTS.
If I am using Ubuntu 20.04 LTS, what should I do regarding USN-7404-1?
If you are using Ubuntu 20.04 LTS, you need to update phpseclib to the versions specified in the USN-7404-1 notice.
Is USN-7404-1 specific to any Ubuntu versions?
Yes, USN-7404-1 specifically affects Ubuntu 20.04 LTS.