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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - journal export allows field injection"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89040">89040</a>
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<th>Summary</th>
<td>journal export allows field injection
</td>
</tr>
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<th>Product</th>
<td>systemd
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>general
</td>
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<th>Assignee</th>
<td>systemd-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>geoffsheep.johnstonefrog@googlemail.com
</td>
</tr>
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<th>QA Contact</th>
<td>systemd-bugs@lists.freedesktop.org
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</tr></table>
<p>
<div>
<pre>The specification says that fields are exported as strings iff they're
printable ASCII (>= 32, < 127). However, the implementation (on RHEL7 at any
rate, and by inspection in the current git master) decides this with
"utf8_is_printable_newline", which will use string export if the data are valid
UTF-8 codepoints, or tab, or newline.
Apart from the inconsistency here, allowing newline lets us do things like
this:
sd_journal_send("MESSAGE=bar\n_UID=99")
which, when exported, gives:
...
CODE_LINE=9
MESSAGE=bar
_UID=99
_PID=9045
..
i.e. formally ambiguous, grammatically.</pre>
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</p>
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