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https://issues.apache.org/jira/browse/TS-827?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Leif Hedstrom resolved TS-827.
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Resolution: Fixed
I think 793f3cfc0ccd01a4dae551af3aa3aa1a5ea77856 is a better solution.
> TSMimeHdrFieldValueStringInsert() can use freed memory to edit headers
> ----------------------------------------------------------------------
>
> Key: TS-827
> URL: https://issues.apache.org/jira/browse/TS-827
> Project: Traffic Server
> Issue Type: Bug
> Components: MIME
> Affects Versions: 2.1.9, 2.1.8, 2.1.7, 2.1.6, 2.1.5, 2.1.4
> Reporter: William Bardwell
> Assignee: Leif Hedstrom
> Fix For: 3.1.4, 3.0.0, 3.1.0
>
> Attachments: headers-prealloc.diff
>
>
> TSMimeHdrFieldValueStringInsert() and other TSMimeHdrFieldValue*() APIs can
> use freed memory to edit headers
> due to calling HdrHeap::coalesce_str_heaps() from HdrHeap::allocate_str() from
> mime_field_value_insert_comma_val() and other mime_field_value_*comma_val()
> functions while holding pointers
> into the HdrHeap.
> I have a hacky but functional patch for this.
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