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home:Alexander_Naumov:SLE-12:Update
libvorbis.7353
0001-CVE-2017-14633-Don-t-allow-for-more-than-2...
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File 0001-CVE-2017-14633-Don-t-allow-for-more-than-256-channel.patch of Package libvorbis.7353
From a79ec216cd119069c68b8f3542c6a425a74ab993 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Guido=20G=C3=BCnther?= <agx@sigxcpu.org> Date: Tue, 31 Oct 2017 18:32:46 +0100 Subject: [PATCH] CVE-2017-14633: Don't allow for more than 256 channels Otherwise for(i=0;i<vi->channels;i++){ /* the encoder setup assumes that all the modes used by any specific bitrate tweaking use the same floor */ int submap=info->chmuxlist[i]; overreads later in mapping0_forward since chmuxlist is a fixed array of 256 elements max. --- lib/info.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/lib/info.c +++ b/lib/info.c @@ -578,7 +578,7 @@ int vorbis_analysis_headerout(vorbis_dsp oggpack_buffer opb; private_state *b=v->backend_state; - if(!b){ + if(!b||vi->channels<=0||vi->channels>256){ ret=OV_EFAULT; goto err_out; }
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