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From 10549ba915556c557b22b3dac7e4cb73ad22d3d8 Mon Sep 17 00:00:00 2001
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From: Rainer Gerhards <rgerhards@adiscon.com>
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Date: Fri, 27 Sep 2019 13:36:02 +0200
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Subject: [PATCH] pmaixforwardedfrom bugfix: potential misadressing
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---
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contrib/pmaixforwardedfrom/pmaixforwardedfrom.c | 9 +++++++++
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1 file changed, 9 insertions(+)
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diff --git a/contrib/pmaixforwardedfrom/pmaixforwardedfrom.c b/contrib/pmaixforwardedfrom/pmaixforwardedfrom.c
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index 37157c7d4a..ebf12ebbef 100644
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--- a/contrib/pmaixforwardedfrom/pmaixforwardedfrom.c
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+++ b/contrib/pmaixforwardedfrom/pmaixforwardedfrom.c
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@@ -109,6 +109,10 @@ CODESTARTparse
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}
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/* bump the message portion up by skipLen(23 or 5) characters to overwrite the "Message forwarded from " or "From " with the hostname */
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lenMsg -=skipLen;
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+ if(lenMsg < 2) {
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+ dbgprintf("not a AIX message forwarded from message has nothing after header\n");
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+ ABORT_FINALIZE(RS_RET_COULD_NOT_PARSE);
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+ }
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memmove(p2parse, p2parse + skipLen, lenMsg);
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*(p2parse + lenMsg) = '\n';
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*(p2parse + lenMsg + 1) = '\0';
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@@ -120,6 +124,11 @@ really an AIX log, but has a similar preamble */
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--lenMsg;
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++p2parse;
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}
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+ if (lenMsg < 1) {
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+ dbgprintf("not a AIX message forwarded from message has nothing after colon "
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+ "or no colon at all\n");
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+ ABORT_FINALIZE(RS_RET_COULD_NOT_PARSE);
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+ }
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if (lenMsg && *p2parse != ':') {
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DBGPRINTF("not a AIX message forwarded from mangled log but similar enough that the preamble has been removed\n");
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ABORT_FINALIZE(RS_RET_COULD_NOT_PARSE);
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