guix/gnu/packages/patches/flac-CVE-2017-6888.patch
Efraim Flashner 2beca2a55c
gnu: flac: Fix CVE-2017-6888.
* gnu/packages/xiph.scm (flac)[replacement]: New field.
(flac/fixed): New variable.
* gnu/packages/patches/flac-CVE-2017-6888.patch: New file.
* gnu/local.mk (dist_patch_DATA): Register it.
2019-04-05 09:50:07 +03:00

29 lines
1.1 KiB
Diff

https://git.xiph.org/?p=flac.git;a=patch;h=4f47b63e9c971e6391590caf00a0f2a5ed612e67
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.
---
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;
}
--
2.11.0