Apache SystemDS up to 2.2.1 readExternal resource consumption

Summaryinfo

A vulnerability has been found in Apache SystemDS up to 2.2.1 and classified as problematic. The affected element is the function readExternal. The manipulation leads to resource consumption. This vulnerability is referenced as CVE-2022-26477. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Apache SystemDS up to 2.2.1. This issue affects the function readExternal. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. The summary by CVE is:

The Security Team noticed that the termination condition of the for loop in the readExternal method is a controllable variable, which, if tampered with, may lead to CPU exhaustion. As a fix, we added an upper bound and termination condition in the read and write logic. We classify it as a "low-priority but useful improvement". SystemDS is a distributed system and needs to serialize/deserialize data but in many code paths (e.g., on Spark broadcast/shuffle or writing to sequence files) the byte stream is anyway protected by additional CRC fingerprints. In this particular case though, the number of decoders is upper-bounded by twice the number of columns, which means an attacker would need to modify two entries in the byte stream in a consistent manner. By adding these checks robustness was strictly improved with almost zero overhead. These code changes are available in versions higher than 2.2.1.

The weakness was published 06/27/2022. It is possible to read the advisory at lists.apache.org. The identification of this vulnerability is CVE-2022-26477. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 2.2.2 eliminates this vulnerability.

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Productinfo

Vendor

• Apache

Name

• SystemDS

Version

• 2.2.0
• 2.2.1

License

• open-source

Website

• Vendor: https://www.apache.org/

CPE 2.3info

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CPE 2.2info

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