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flac: CVE-2017-6888

Browse Source 
stream_decoder.c: Fix a memory leak

Leak reported by Secunia Research.

Affects flac = 1.3.2

(From OE-Core rev: bca64ae1b02717c04edfee6dcc9a89cfa91d0c73)

Signed-off-by: Jagadeesh Krishnanjanappa <jkrishnanjanappa@mvista.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Jagadeesh Krishnanjanappa
2018-08-22 18:50:05 +05:30
committed by Richard Purdie
parent 65000da237
commit 288dbefdf3
2 changed files with 33 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
meta/recipes-multimedia/flac/files/CVE-2017-6888.patch
+31
View File
@@ -0,0 +1,31 @@
From 4f47b63e9c971e6391590caf00a0f2a5ed612e67 Mon Sep 17 00:00:00 2001
From: Erik de Castro Lopo <erikd@mega-nerd.com>
Date: Sat, 8 Apr 2017 18:34:49 +1000
Subject: [PATCH] stream_decoder.c: Fix a memory leak
Leak reported by Secunia Research.
CVE: CVE-2017-6888
Upstream-Status: Backport [https://git.xiph.org/?p=flac.git;a=commitdiff;h=4f47b63e9c971e6391590caf00a0f2a5ed612e67]
Signed-off-by: Jagadeesh Krishnanjanappa <jkrishnanjanappa@mvista.com>
---
src/libFLAC/stream_decoder.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/libFLAC/stream_decoder.c b/src/libFLAC/stream_decoder.c
index 14d5fe7f..a5527511 100644
--- a/src/libFLAC/stream_decoder.c
+++ b/src/libFLAC/stream_decoder.c
@@ -1753,6 +1753,9 @@ FLAC__bool read_metadata_vorbiscomment_(FLAC__StreamDecoder *decoder, FLAC__Stre
}
memset (obj->comments[i].entry, 0, obj->comments[i].length) ;
if (!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, obj->comments[i].entry, obj->comments[i].length)) {
+ /* Current i-th entry is bad, so we delete it. */
+ free (obj->comments[i].entry) ;
+ obj->comments[i].entry = NULL ;
obj->num_comments = i;
goto skip;
}
--
2.13.3
meta/recipes-multimedia/flac/flac_1.3.2.bb
+2 -1
View File
@@ -14,7 +14,8 @@ LIC_FILES_CHKSUM = "file://COPYING.FDL;md5=ad1419ecc56e060eccf8184a87c4285f \
file://include/FLAC/all.h;beginline=65;endline=70;md5=64474f2b22e9e77b28d8b8b25c983a48"
DEPENDS = "libogg"
SRC_URI = "http://downloads.xiph.org/releases/flac/${BP}.tar.xz"
SRC_URI = "http://downloads.xiph.org/releases/flac/${BP}.tar.xz \
file://CVE-2017-6888.patch"
SRC_URI[md5sum] = "454f1bfa3f93cc708098d7890d0499bd"
SRC_URI[sha256sum] = "91cfc3ed61dc40f47f050a109b08610667d73477af6ef36dcad31c31a4a8d53f"