SB2022013106 - Denial of service in Google protobuf

Description

This security bulletin contains information about 1 security vulnerability.

1) Resource management error (CVE-ID: CVE-2021-22569)

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

The vulnerability exists due to improper management of internal resources within the application. protobuf-java allowes the interleaving of com.google.protobuf.UnknownFieldSet fields in such a way that would be processed out of order. A small malicious payload can occupy the parser for several minutes by creating large numbers of short-lived objects that cause frequent, repeated pauses. A remote attacker can trick the victim into passing specially crafted data to the application and perform a denial of service attack.

Remediation

Install update from vendor's website.

References

• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=39330
• https://cloud.google.com/support/bulletins#gcp-2022-001
• http://www.openwall.com/lists/oss-security/2022/01/12/4
• http://www.openwall.com/lists/oss-security/2022/01/12/7