159238 CVE-2016-4767 2016-06-28 17:17:35 -0700 Throw exceptions for invalid number of channels for ConvolverNode 2017-10-11 10:29:49 -0700 1 1 1 Unclassified WebKit WebKit Misc. WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED https://bugs.chromium.org/p/chromium/issues/detail?id=563379 InRadar P2 Normal --- 159232 1 ddkilzer webkit-unassigned achristensen aestes beidson bfulgham cdumez eric.carlson jeremyj-wk jer.noble jonlee ryanhaddad oldest_to_newest 1206232 0 ddkilzer 2016-06-28 17:17:35 -0700 The ConvolverNode only supports 1, 2 or 4 channels and must throw an exception for any other number of channels. 1206233 1 ddkilzer 2016-06-28 17:19:18 -0700 This causes a heap-buffer-overflow read in com.apple.WebKit.WebContent at com.apple.WebCore: WebCore::AudioArray<float>::copyToRange + 76 under ASan. Application Specific Information: ================================================================ ==30955==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60200030a3f4 at pc 0x00010e94734a bp 0x7fff5360ed70 sp 0x7fff5360e528 READ of size 256 at 0x60200030a3f4 thread T0 #0 0x10e947349 in __asan_memcpy (/Applications/Xcode.app/Contents/Developer/Toolchains/OSX10.11.xctoolchain/usr/lib/clang/7.0.0/lib/darwin/libclang_rt.asan_osx_dynamic.dylib+0x39349) #1 0x11398935b in WebCore::AudioArray<float>::copyToRange(float const*, unsigned int, unsigned int) (/Users/local/OpenSource/WebKitBuild/Release/WebCore.framework/Versions/A/WebCore+0x97f35b) #2 0x11503b0bf in WebCore::ReverbConvolverStage::ReverbConvolverStage(float const*, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, WebCore::ReverbAccumulationBuffer*, bool) (/Users/local/OpenSource/WebKitBuild/Release/WebCore.framework/Versions/A/WebCore+0x20310bf) #3 0x11503b4b8 in WebCore::ReverbConvolverStage::ReverbConvolverStage(float const*, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, WebCore::ReverbAccumulationBuffer*, bool) (/Users/local/OpenSource/WebKitBuild/Release/WebCore.framework/Versions/A/WebCore+0x20314b8) #4 0x11503921a in WebCore::ReverbConvolver::ReverbConvolver(WebCore::AudioChannel*, unsigned long, unsigned long, unsigned long, bool) (/Users/local/OpenSource/WebKitBuild/Release/WebCore.framework/Versions/A/WebCore+0x202f21a) #5 0x115037bba in WebCore::Reverb::initialize(WebCore::AudioBus*, unsigned long, unsigned long, unsigned long, bool) (/Users/local/OpenSource/WebKitBuild/Release/WebCore.framework/Versions/A/WebCore+0x202dbba) #6 0x1150376cc in WebCore::Reverb::Reverb(WebCore::AudioBus*, unsigned long, unsigned long, unsigned long, bool, bool) (/Users/local/OpenSource/WebKitBuild/Release/WebCore.framework/Versions/A/WebCore+0x202d6cc) #7 0x115037d57 in WebCore::Reverb::Reverb(WebCore::AudioBus*, unsigned long, unsigned long, unsigned long, bool, bool) (/Users/local/OpenSource/WebKitBuild/Release/WebCore.framework/Versions/A/WebCore+0x202dd57) #8 0x1133ca260 in WebCore::ConvolverNode::setBuffer(WebCore::AudioBuffer*, int&) (/Users/local/OpenSource/WebKitBuild/Release/WebCore.framework/Versions/A/WebCore+0x3c0260) #9 0x114073996 in WebCore::setJSConvolverNodeBuffer(JSC::ExecState*, long long, long long) (/Users/local/OpenSource/WebKitBuild/Release/WebCore.framework/Versions/A/WebCore+0x1069996) #10 0x110359368 in JSC::callCustomSetter(JSC::ExecState*, bool (*)(JSC::ExecState*, long long, long long), bool, JSC::JSValue, JSC::JSValue) (/Users/local/OpenSource/WebKitBuild/Release/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x574368) [...] 1206235 2 ddkilzer 2016-06-28 17:20:06 -0700 <rdar://problem/27020410> 1206243 3 282306 ddkilzer 2016-06-28 17:41:26 -0700 Created attachment 282306 Patch v1 1206245 4 ddkilzer 2016-06-28 17:42:31 -0700 Please note that the patch for Bug 159232 needs to land before this one since it adds support to use anonymous functions and descriptive messages with shouldNotThrow() and shouldThrow(). 1206249 5 282306 bfulgham 2016-06-28 17:54:41 -0700 Comment on attachment 282306 Patch v1 View in context: https://bugs.webkit.org/attachment.cgi?id=282306&action=review Looks good. You'll need to land this manually, since the commit-queue doesn't process security bugs. > Source/WebCore/ChangeLog:4 > + <https://webkit.org/b/159238> <rdar://problem/27020410> > LayoutTests/ChangeLog:4 > + <https://webkit.org/b/159238> <rdar://problem/27020410> > LayoutTests/webaudio/convolver-channels.html:18 > + for (var count = 1; count <= 32; ++count) { Just curious: Is 32 an arbitrary value? Or do we have Audio elements that use 32 channels? 1206343 6 282306 ddkilzer 2016-06-29 02:40:48 -0700 Comment on attachment 282306 Patch v1 View in context: https://bugs.webkit.org/attachment.cgi?id=282306&action=review >> LayoutTests/webaudio/convolver-channels.html:18 >> + for (var count = 1; count <= 32; ++count) { > > Just curious: Is 32 an arbitrary value? Or do we have Audio elements that use 32 channels? I suspect it was chosen as a practical limit for the test. 1206347 7 ddkilzer 2016-06-29 03:20:31 -0700 Committed r202617: <http://trac.webkit.org/changeset/202617> 1206378 8 282306 eric.carlson 2016-06-29 07:52:14 -0700 Comment on attachment 282306 Patch v1 View in context: https://bugs.webkit.org/attachment.cgi?id=282306&action=review > Source/WebCore/Modules/webaudio/ConvolverNode.cpp:137 > + bool isChannelCountGood = numberOfChannels == 1 || numberOfChannels == 2 || numberOfChannels == 4; Is it safe to drop the bufferLength check? 1206472 9 ddkilzer 2016-06-29 13:16:26 -0700 This will be rolled out as the fix wasn't complete. 1206473 10 ryanhaddad 2016-06-29 13:18:08 -0700 Reverted r202617 for reason: The LayoutTest from this change crashes under GuardMalloc Committed r202645: <http://trac.webkit.org/changeset/202645> 1208064 11 282848 bfulgham 2016-07-05 21:06:40 -0700 Created attachment 282848 Patch 1208065 12 282848 bfulgham 2016-07-05 21:08:09 -0700 Comment on attachment 282848 Patch Re-landing after finding the corresponding Blink change to correct the buffer overrun found during our testing. 1208066 13 bfulgham 2016-07-05 21:12:20 -0700 Committed r202845: <http://trac.webkit.org/changeset/202845> 282306 2016-06-28 17:41:26 -0700 2016-07-05 21:06:37 -0700 Patch v1 bug-159238-20160628174107.patch text/plain 9911 ddkilzer U3VidmVyc2lvbiBSZXZpc2lvbjogMjAyNTk0CmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViQ29yZS9D aGFuZ2VMb2cgYi9Tb3VyY2UvV2ViQ29yZS9DaGFuZ2VMb2cKaW5kZXggOWQxZTZlZDE3NTExYmMw NTBmZTlmMWM2MmZjNWFkODExMzk5YTIxNy4uYzRmYzBmODY1YzQwN2M0M2QwMTVlYzNiZThjZmE0 MjAwZGFhYTdlMiAxMDA2NDQKLS0tIGEvU291cmNlL1dlYkNvcmUvQ2hhbmdlTG9nCisrKyBiL1Nv dXJjZS9XZWJDb3JlL0NoYW5nZUxvZwpAQCAtMSwzICsxLDE5IEBACisyMDE2LTA2LTI4ICBEYXZp ZCBLaWx6ZXIgIDxkZGtpbHplckBhcHBsZS5jb20+CisKKyAgICAgICAgVGhyb3cgZXhjZXB0aW9u cyBmb3IgaW52YWxpZCBudW1iZXIgb2YgY2hhbm5lbHMgZm9yIENvbnZvbHZlck5vZGUKKyAgICAg ICAgPGh0dHBzOi8vd2Via2l0Lm9yZy9iLzE1OTIzOD4KKworICAgICAgICBSZXZpZXdlZCBieSBO 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