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From: Mans Rullgard <mans@mansr.com>
To: sox-devel@lists.sourceforge.net
Subject: [PATCH 2/8] hcom: fix crash on input with corrupt dictionary (CVE-2017-11358)
Date: Thu, 26 Apr 2018 14:15:46 +0100	[thread overview]
Message-ID: <20180426131552.29249-3-mans@mansr.com> (raw)
In-Reply-To: <20180426131552.29249-1-mans@mansr.com>

---
 src/hcom.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/hcom.c b/src/hcom.c
index e76820e9333f..ee28cba24218 100644
--- a/src/hcom.c
+++ b/src/hcom.c
@@ -150,6 +150,11 @@ static int startread(sox_format_t * ft)
                 lsx_debug("%d %d",
                        p->dictionary[i].dict_leftson,
                        p->dictionary[i].dict_rightson);
+                if ((unsigned) p->dictionary[i].dict_leftson >= dictsize ||
+                    (unsigned) p->dictionary[i].dict_rightson >= dictsize) {
+                        lsx_fail_errno(ft, SOX_EHDR, "Invalid dictionary");
+                        return SOX_EOF;
+                }
         }
         rc = lsx_skipbytes(ft, (size_t) 1); /* skip pad byte */
         if (rc)
-- 
2.17.0


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  parent reply	other threads:[~2018-04-26 13:16 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-26 13:15 [PATCH 0/8] CVE fixes Mans Rullgard
2018-04-26 13:15 ` [PATCH 1/8] wav: fix crash if channel count is zero (CVE-2017-11332) Mans Rullgard
2018-04-26 13:15 ` Mans Rullgard [this message]
2018-04-26 13:15 ` [PATCH 3/8] wav: fix crash writing header when channel count >64k (CVE-2017-11359) Mans Rullgard
2018-04-26 13:15 ` [PATCH 4/8] wav: ima_adpcm: fix buffer overflow on corrupt input (CVE-2017-15370) Mans Rullgard
2018-04-26 13:15 ` [PATCH 5/8] flac: fix crash on corrupt metadata (CVE-2017-15371) Mans Rullgard
2018-04-26 13:15 ` [PATCH 6/8] adpcm: fix stack overflow with >4 channels (CVE-2017-15372) Mans Rullgard
2018-04-28  0:34   ` Eric Wong
2018-04-28 10:54     ` Måns Rullgård
2018-04-28 11:21       ` Sonny Ray
2018-04-28 12:50         ` Måns Rullgård
2018-04-26 13:15 ` [PATCH 7/8] aiff: fix crash on empty comment chunk (CVE-2017-15642) Mans Rullgard
2018-04-26 13:15 ` [PATCH 8/8] xa: validate channel count (CVE-2017-18189) Mans Rullgard

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