DoS (Denial of Service) com.google.protobuf:protobuf-java Dependency in Jira Software Data Center and Server

This High severity com.google.protobuf:protobuf-java Dependency vulnerability was introduced in versions 8.20.0, 8.22.0, 9.0.0, 9.1.0, 9.2.0, 9.3.0, 9.4.0, and 9.5.0 of Jira Software Data Center and Server.

This com.google.protobuf:protobuf-java Dependency vulnerability, with a CVSS Score of 7.5 and a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H allows an unauthenticated attacker to expose assets in your environment susceptible to exploitation which has no impact to confidentiality, no impact to integrity, high impact to availability, and requires no user interaction.

Atlassian recommends that Jira Software Data Center and Server customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions:

||Affected versions||Fixed versions||
|9.5.0 to 9.5.1|9.12.5 LTS Recommended or 9.6.0|
|9.4.0 to 9.4.15 LTS|9.12.5 LTS Recommended or 9.4.16 LTS or 9.6.0|
|9.3.0 to 9.3.3|9.12.5 LTS Recommended or 9.4.16 LTS or 9.6.0|
|9.2.0 to 9.2.1|9.12.5 LTS Recommended or 9.4.16 LTS or 9.6.0|
|9.1.0 to 9.1.1|9.12.5 LTS Recommended or 9.4.16 LTS or 9.6.0|
|9.0.0|9.12.5 LTS Recommended or 9.4.16 LTS or 9.6.0|
|Any earlier versions|9.12.5 LTS Recommended or 9.4.16 LTS or 9.6.0|

See the release notes ([https://www.atlassian.com/software/jira/download-archives]). You can download the latest version of Jira Software Data Center and Server from the download center ([https://www.atlassian.com/software/jira/download-archives]).

The National Vulnerability Database provides the following description for this vulnerability: A parsing issue with binary data in protobuf-java core and lite versions prior to 3.21.7, 3.20.3, 3.19.6 and 3.16.3 can lead to a denial of service attack. Inputs containing multiple instances of non-repeated embedded messages with repeated or unknown fields causes objects to be converted back-n-forth between mutable and immutable forms, resulting in potentially long garbage collection pauses. We recommend updating to the versions mentioned above.