SB2021040774 - openEuler 20.03 LTS SP1 update for rubygem-rails

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Deserialization of Untrusted Data (CVE-ID: CVE-2020-8165)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data in the "MemCacheStore" and "RedisCacheStore". A remote attacker can pass specially crafted data to the application using the "raw: true" parameter and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

2) Input validation error (CVE-ID: CVE-2020-8162)

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 ActiveStorage's S3 adapter. A remote attacker can control the Content-Length of an S3 direct upload URL without receiving a new signature from the server and perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1145