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SUSE:SLE-15-SP2:GA
flac.24379
libFLAC-bitreader.c-Fix-out-of-bounds-read.patch
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File libFLAC-bitreader.c-Fix-out-of-bounds-read.patch of Package flac.24379
From 2e7931c27eb15e387da440a37f12437e35b22dd4 Mon Sep 17 00:00:00 2001 From: Erik de Castro Lopo <erikd@mega-nerd.com> Date: Mon, 7 Oct 2019 12:55:58 +1100 Subject: [PATCH] libFLAC/bitreader.c: Fix out-of-bounds read Credit: Oss-Fuzz Issue: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17069 Testcase: fuzzer_decoder-5670265022840832 --- src/libFLAC/bitreader.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/libFLAC/bitreader.c b/src/libFLAC/bitreader.c index 5e4b59180eb3..3df4d02c0bb0 100644 --- a/src/libFLAC/bitreader.c +++ b/src/libFLAC/bitreader.c @@ -869,7 +869,7 @@ incomplete_lsbs: cwords = br->consumed_words; words = br->words; ucbits = FLAC__BITS_PER_WORD - br->consumed_bits; - b = br->buffer[cwords] << br->consumed_bits; + b = cwords < br->capacity ? br->buffer[cwords] << br->consumed_bits : 0; } while(cwords >= words && val < end); } -- 2.26.2
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