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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/3898/">https://reviewboard.asterisk.org/r/3898/</a>
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<div>Review request for Asterisk Developers.</div>
<div>By wdoekes.</div>
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<b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>
<a href="https://issues.asterisk.org/jira/browse/ASTERISK-23508">ASTERISK-23508</a>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
Asterisk
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Reporter has observed memory corruption in __ast_string_field_ptr_build_va.
Cause:
- when all space in a stringfield is used (used==size), then space==0
- in that case, the "available" space would become below zero and overflow (size_t)
- result, avaiable space is huge, and memory corruption ensues
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Problem and cause has been described by Arnd Schmitter and tested by him and JoshE.
The tested patch was against 11. This review is a backport to 1.8.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>/branches/1.8/main/utils.c <span style="color: grey">(420566)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/3898/diff/" style="margin-left: 3em;">View Diff</a></p>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">File Attachments </h1>
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<li><a href="https://reviewboard.asterisk.org/media/uploaded/files/2014/08/08/4d51862e-4661-49f2-92be-e6a17feebfd3__issueA23508_stringfieldptr_corruption-11.x.patch">branches-11</a></li>
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