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Subject: Prevent memory exhausted due to repeat appending "</table>"
Author: Tatsuya Kinoshita <tats@debian.org>
Bug-Debian: https://github.com/tats/w3m/issues/23 [CVE-2016-9633]
Origin: https://anonscm.debian.org/cgit/collab-maint/w3m.git/commit/?id=216722ed7282cec4338b177ea9ffdd39ad1b8c8c
diff --git a/file.c b/file.c
index 660b10e..e82eaf1 100644
--- a/file.c
+++ b/file.c
@@ -6988,9 +6988,12 @@ completeHTMLstream(struct html_feed_environ *h_env, struct readbuffer *obuf)
obuf->table_level = MAX_TABLE - 1;
while (obuf->table_level >= 0) {
+ int tmp = obuf->table_level;
table_mode[obuf->table_level].pre_mode
&= ~(TBLM_SCRIPT | TBLM_STYLE | TBLM_PLAIN);
HTMLlineproc1("</table>", h_env);
+ if (obuf->table_level >= tmp)
+ break;
}
}
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