[jira] [Commented] (KAFKA-14063) Kafka message parsing can cause ooms with small antagonistic payloads

["Manikumar (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KAFKA-14063?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17607810#comment-17607810 ] 

Manikumar commented on KAFKA-14063:
-----------------------------------

CVE Reference: https://nvd.nist.gov/vuln/detail/CVE-2022-34917

> Kafka message parsing can cause ooms with small antagonistic payloads
> ---------------------------------------------------------------------
>
>                 Key: KAFKA-14063
>                 URL: https://issues.apache.org/jira/browse/KAFKA-14063
>             Project: Kafka
>          Issue Type: Bug
>          Components: generator
>    Affects Versions: 3.2.0
>            Reporter: Daniel Collins
>            Priority: Major
>             Fix For: 2.8.2, 3.3.0, 3.0.2, 3.1.2, 3.2.3
>
>
> When parsing code receives a payload for a variable length field where the length is specified in the code as some arbitrarily large number (assume INT32_MAX for example) this will immediately try to allocate an ArrayList to hold this many elements, before checking whether this is a reasonable array size given the available data. 
> The fix for this is to instead throw a runtime exception if the length of a variably sized container exceeds the amount of remaining data. Then, the worst a user can do is force the server to allocate 8x the size of the actual delivered data (if they claim there are N elements for a container of Objects (i.e. not a byte string) and each Object bottoms out in an 8 byte pointer in the ArrayList's backing array).
> This was identified by fuzzing the kafka request parsing code.



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