| From 6cb44a44b9eda6b321ccdbf6483348d4a9798b00 Mon Sep 17 00:00:00 2001 |
| From: Mans Rullgard <mans@mansr.com> |
| Date: Sun, 5 Nov 2017 16:43:35 +0000 |
| Subject: [PATCH] hcom: fix crash on input with corrupt dictionary |
| (CVE-2017-11358) |
| |
| --- |
| src/hcom.c | 5 +++++ |
| 1 file changed, 5 insertions(+) |
| |
| diff --git a/src/hcom.c b/src/hcom.c |
| index c62b020c..1b0e09dd 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) |
