gnu: libvorbis: Fix CVE-2017-{14632,14633}.
* gnu/packages/patches/libvorbis-CVE-2017-14632.patch, gnu/packages/patches/libvorbis-CVE-2017-14633.patch: New files. * gnu/local.mk (dist_patch_DATA): Add them. * gnu/packages/xiph.scm (libvorbis)[replacement]: New field. (libvorbis/fixed): New variable.master
Leo Famulari
parent
ce577655a3
commit
138c08899b
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@ -851,6 +851,8 @@ dist_patch_DATA = \
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%D%/packages/patches/libusb-0.1-disable-tests.patch \
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%D%/packages/patches/libusb-for-axoloti.patch \
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%D%/packages/patches/libvdpau-va-gl-unbundle.patch \
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%D%/packages/patches/libvorbis-CVE-2017-14632.patch \
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%D%/packages/patches/libvorbis-CVE-2017-14633.patch \
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%D%/packages/patches/libvpx-CVE-2016-2818.patch \
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%D%/packages/patches/libxcb-python-3.5-compat.patch \
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%D%/packages/patches/libxml2-CVE-2016-4658.patch \
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@ -0,0 +1,63 @@
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Fix CVE-2017-14632:
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https://gitlab.xiph.org/xiph/vorbis/issues/2328
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https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14632
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Patch copied from upstream source repository:
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https://gitlab.xiph.org/xiph/vorbis/commit/c1c2831fc7306d5fbd7bc800324efd12b28d327f
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From c1c2831fc7306d5fbd7bc800324efd12b28d327f Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Guido=20G=C3=BCnther?= <agx@sigxcpu.org>
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Date: Wed, 15 Nov 2017 18:22:59 +0100
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Subject: [PATCH] CVE-2017-14632: vorbis_analysis_header_out: Don't clear opb
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if not initialized
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If the number of channels is not within the allowed range
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we call oggback_writeclear altough it's not initialized yet.
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This fixes
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=23371== Invalid free() / delete / delete[] / realloc()
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==23371== at 0x4C2CE1B: free (vg_replace_malloc.c:530)
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==23371== by 0x829CA31: oggpack_writeclear (in /usr/lib/x86_64-linux-gnu/libogg.so.0.8.2)
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==23371== by 0x84B96EE: vorbis_analysis_headerout (info.c:652)
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==23371== by 0x9FBCBCC: ??? (in /usr/lib/x86_64-linux-gnu/sox/libsox_fmt_vorbis.so)
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==23371== by 0x4E524F1: ??? (in /usr/lib/x86_64-linux-gnu/libsox.so.2.0.1)
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==23371== by 0x4E52CCA: sox_open_write (in /usr/lib/x86_64-linux-gnu/libsox.so.2.0.1)
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==23371== by 0x10D82A: open_output_file (sox.c:1556)
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==23371== by 0x10D82A: process (sox.c:1753)
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==23371== by 0x10D82A: main (sox.c:3012)
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==23371== Address 0x68768c8 is 488 bytes inside a block of size 880 alloc'd
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==23371== at 0x4C2BB1F: malloc (vg_replace_malloc.c:298)
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==23371== by 0x4C2DE9F: realloc (vg_replace_malloc.c:785)
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==23371== by 0x4E545C2: lsx_realloc (in /usr/lib/x86_64-linux-gnu/libsox.so.2.0.1)
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==23371== by 0x9FBC9A0: ??? (in /usr/lib/x86_64-linux-gnu/sox/libsox_fmt_vorbis.so)
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==23371== by 0x4E524F1: ??? (in /usr/lib/x86_64-linux-gnu/libsox.so.2.0.1)
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==23371== by 0x4E52CCA: sox_open_write (in /usr/lib/x86_64-linux-gnu/libsox.so.2.0.1)
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==23371== by 0x10D82A: open_output_file (sox.c:1556)
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==23371== by 0x10D82A: process (sox.c:1753)
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==23371== by 0x10D82A: main (sox.c:3012)
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as seen when using the testcase from CVE-2017-11333 with
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008d23b782be09c8d75ba8190b1794abd66c7121 applied. However the error was
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there before.
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---
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lib/info.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/lib/info.c b/lib/info.c
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index 7bc4ea4..8d0b2ed 100644
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--- a/lib/info.c
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+++ b/lib/info.c
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@@ -589,6 +589,7 @@ int vorbis_analysis_headerout(vorbis_dsp_state *v,
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private_state *b=v->backend_state;
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if(!b||vi->channels<=0||vi->channels>256){
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+ b = NULL;
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ret=OV_EFAULT;
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goto err_out;
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}
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--
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2.15.1
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@ -0,0 +1,43 @@
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Fix CVE-2017-14633:
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https://gitlab.xiph.org/xiph/vorbis/issues/2329
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https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14633
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Patch copied from upstream source repository:
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https://gitlab.xiph.org/xiph/vorbis/commit/a79ec216cd119069c68b8f3542c6a425a74ab993
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From a79ec216cd119069c68b8f3542c6a425a74ab993 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Guido=20G=C3=BCnther?= <agx@sigxcpu.org>
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Date: Tue, 31 Oct 2017 18:32:46 +0100
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Subject: [PATCH] CVE-2017-14633: Don't allow for more than 256 channels
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Otherwise
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for(i=0;i<vi->channels;i++){
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/* the encoder setup assumes that all the modes used by any
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specific bitrate tweaking use the same floor */
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int submap=info->chmuxlist[i];
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overreads later in mapping0_forward since chmuxlist is a fixed array of
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256 elements max.
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---
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lib/info.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/lib/info.c b/lib/info.c
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index fe759ed..7bc4ea4 100644
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--- a/lib/info.c
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+++ b/lib/info.c
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@@ -588,7 +588,7 @@ int vorbis_analysis_headerout(vorbis_dsp_state *v,
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oggpack_buffer opb;
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private_state *b=v->backend_state;
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- if(!b||vi->channels<=0){
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+ if(!b||vi->channels<=0||vi->channels>256){
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ret=OV_EFAULT;
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goto err_out;
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}
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--
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2.15.1
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@ -79,6 +79,7 @@ periodic timestamps for seeking.")
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(define libvorbis
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(package
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(name "libvorbis")
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(replacement libvorbis/fixed)
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(version "1.3.5")
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(source (origin
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(method url-fetch)
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@ -102,6 +103,14 @@ polyphonic) audio and music at fixed and variable bitrates from 16 to
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"See COPYING in the distribution."))
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(home-page "http://xiph.org/vorbis/")))
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(define libvorbis/fixed
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(package
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(inherit libvorbis)
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(source (origin
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(inherit (package-source libvorbis))
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(patches (search-patches "libvorbis-CVE-2017-14633.patch"
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"libvorbis-CVE-2017-14632.patch"))))))
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(define libtheora
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(package
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(name "libtheora")
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