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https://issues.apache.org/jira/browse/SPARK-39793?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon resolved SPARK-39793.
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    Resolution: Invalid

Resolving as Invalid — this is a usage/how-to question rather than a specific 
Spark defect or actionable change. Usage questions are best directed to 
[email protected] (https://spark.apache.org/community.html) or Stack 
Overflow (tag apache-spark). Findings from triage: Verified at 
/Users/hyukjin.kwon/workspace/forked/spark on master. The ticket is typed as a 
"Question" and literally asks how to treat/eliminate a scanner-reported CVE 
(CVE-2021-4048) for a bundled third-party jar (arpack_combined_all-0.1.jar). It 
contains no reproducer, no failing behavior, and no proposed code change — it 
is a security-triage/how-to question, which belongs on user@/dev@ or 
[email protected], not a JIRA bug/improvement.

Evidence confirms the disposition rationale: graphx/pom.xml lines 67-70 still 
declare net.sourceforge.f2j:arpack_combined_all:0.1 and dev/deps/spark-deps-ha

Please reopen with a concrete reproducer or a specific proposed change if this 
is actually a bug or an actionable improvement.

> How to treat/eliminate CVE-2021-4048 (reported for 
> arpack_combined_all-0.1.jar)
> -------------------------------------------------------------------------------
>
>                 Key: SPARK-39793
>                 URL: https://issues.apache.org/jira/browse/SPARK-39793
>             Project: Spark
>          Issue Type: Question
>          Components: MLlib
>    Affects Versions: 3.3.0
>            Reporter: Alexander Bouriakov
>            Priority: Major
>
> The following CVE is reported for arpack_combined_all-0.1.jar which is used 
> in  org.apache.spark:spark-graphx_2.13 which in turn is used in mllib : 
> [https://nvd.nist.gov/vuln/detail/CVE-2021-4048]
> Questions: how relevant is this issue, can it be safely ignored?
> It seems that arpack_combined_all-0.1.jar is really needed because when 
> removing it from the CLASSPATH, a NoClassDefFoundError: org/netlib/blas/Sdot 
> is reported.



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