SB20220926101 - Anolis OS update for ruby:2.7 module

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Incorrect Regular Expression (CVE-ID: CVE-2021-41817)

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

The vulnerability exists due to insufficient input validation when processing regular expressions on date parsing methods. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.

2) Spoofing attack (CVE-ID: CVE-2021-41819)

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect processing of user-supplied data in CGI::Cookie.parse. A remote attacker can spoof page content.

3) Type conversion (CVE-ID: CVE-2022-28739)

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a type conversion error in some convertion methods like Kernel#Float</code> and <code>String#to_f. A remote attacker can pass specially crafted data to the affected application, trigger memory corruption and execute arbitrary code in the system.

Remediation

Install update from vendor's website.

References

• https://anas.openanolis.cn/errata/detail/ANSA-2022:0719