32 lines
1.1 KiB
Diff
32 lines
1.1 KiB
Diff
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From: =?utf-8?q?Bastien_Roucari=C3=A8s?= <rouca@debian.org>
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Date: Sun, 13 Aug 2023 14:14:09 +0000
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Subject: CVE-2023-32627 Filter null sampling rate in VOC coder
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Avoid a divide by zero and out of bound read by rejecting null sampling rate in VOC file
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bug: https://sourceforge.net/p/sox/bugs/369/
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bug-redhat: https://bugzilla.redhat.com/show_bug.cgi?id=2212282
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bug-debian: https://bugs.debian.org/1041112
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bug-debian-security: https://security-tracker.debian.org/tracker/CVE-2023-32627
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---
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src/voc.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/src/voc.c b/src/voc.c
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index f44933d..cad32fa 100644
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--- a/src/voc.c
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+++ b/src/voc.c
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@@ -351,6 +351,11 @@ static size_t read_samples(sox_format_t * ft, sox_sample_t * buf,
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v->block_remaining = 0;
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return done;
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}
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+ if(uc == 0) {
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+ lsx_fail_errno(ft, EINVAL, "invalid rate value");
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+ v->block_remaining = 0;
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+ return done;
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+ }
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*buf = SOX_UNSIGNED_8BIT_TO_SAMPLE(uc,);
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lsx_adpcm_init(&v->adpcm, 6 - v->size, SOX_SAMPLE_TO_SIGNED_16BIT(*buf, ft->clips));
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++buf;
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