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Files from Google Security Research

First Active2000-02-18
Last Active2024-07-29
Telegram For Android Connection::onReceivedData Use-After-Free
Posted Jul 29, 2024
Authored by Google Security Research, Mark Brand

Telegram for Android suffers from a use-after-free vulnerability in Connection::onReceivedData.

tags | advisory
SHA-256 | b50977499b859adec9bc55d49621466231a4ab00aa44223747f9839cecd9995e
PowerVR _DevmemXReservationPageAddress() Wrapping Addition Error
Posted Jul 29, 2024
Authored by Jann Horn, Google Security Research

PowerVR has an issue where wrapping addition in _DevmemXReservationPageAddress() causes an MMU operation at the wrong address.

tags | exploit
advisories | CVE-2024-34748
SHA-256 | 8cf4775aa2d6620274690594068ebd5446a26435ff99535d37ef3d64af38db87
PowerVR DevmemXIntMapPages() / DevmemXIntUnmapPages() Integer Overflows
Posted Jul 29, 2024
Authored by Jann Horn, Google Security Research

PowerVR has integer overflows in DevmemXIntMapPages() and DevmemXIntUnmapPages(), exploitable as dangling GPU page table entries.

tags | exploit, overflow
advisories | CVE-2024-34733
SHA-256 | 607faad30ec56959223ff39f5065ae4bc346c6c969c93404b728ab4ed243fc1a
PowerVR PMR Physical Memory Handling Flaw
Posted Jul 29, 2024
Authored by Jann Horn, Google Security Research

PowerVR PMR allows physical memory to be freed before GPU TLB invalidation.

tags | exploit
advisories | CVE-2024-34732
SHA-256 | 48938b3e44dc2ae24749118301fe7c8b943bd6b5bb5f57034378aa0f41845d6f
PowerVR Dangling Page Table Entry
Posted Jul 18, 2024
Authored by Jann Horn, Google Security Research

PowerVR has an issue with missing tracking of multiple sparse mappings in DevmemIntChangeSparse2() that leads to a dangling page table entry.

tags | exploit
advisories | CVE-2024-34729
SHA-256 | 426fb16d93d8096a50bbd9d26c9fe783fb082dc59ace42d221957b371d7eaae7
PowerVR Driver Missing Sanitization
Posted Jul 2, 2024
Authored by Jann Horn, Google Security Research

The PowerVR driver does not sanitize ZS-Buffer / MSAA scratch firmware addresses.

tags | exploit
advisories | CVE-2024-31337
SHA-256 | c2daa30504b0e8c789700f2b12ba70633fcac40fa494865c6f36f0fc4494835b
PowerVR Out-Of-Bounds Write
Posted Jun 18, 2024
Authored by Jann Horn, Google Security Research

PowerVR suffers from an out-of-bounds write of firmware addresses in PVRSRVRGXKickTA3DKM().

tags | exploit
SHA-256 | bf643f590254db32f40863c345eaa6faa2bb814e2aa4cfd56828c8a49a38c33a
PowerVR Uninitialized Memory Disclosure
Posted Jun 18, 2024
Authored by Jann Horn, Google Security Research

PowerVR suffers from an uninitialized memory disclosure and crash due to out-of-bounds reads in hwperf_host_%d stream.

tags | exploit
SHA-256 | 21afd37aba8ffcfc6bd66ce8187be897144f972c8efddd7b417e5044e23024a8
PowerVR DevmemXIntMapPages() Mapping Issue
Posted Jun 4, 2024
Authored by Jann Horn, Google Security Research

PowerVR suffers from an issue where DevmemXIntMapPages() allows mapping sDevZeroPage/sDummyPage without holding reference.

tags | exploit
advisories | CVE-2024-31334
SHA-256 | a872ec3e6ff34c9730a9e040bcfef2da822351bb1bc1c1b8c09c8adf411bf0bd
PowerVR DevmemIntChangeSparse2() Dangling Page Table Entry
Posted May 21, 2024
Authored by Jann Horn, Google Security Research

PowerVR suffers from a wrong order of operations in DevmemIntChangeSparse2() that leads to a temporarily dangling page table entry.

tags | exploit
advisories | CVE-2024-31335
SHA-256 | c60d53fd594988ae874f9172ca988e0a08a60b03ec48452203f70a979e6d922e
PowerVR _UnrefAndMaybeDestroy() Use-After-Free
Posted May 21, 2024
Authored by Jann Horn, Google Security Research

PowerVR suffers from a use-after-free vulnerability in _UnrefAndMaybeDestroy().

tags | exploit
advisories | CVE-2024-34724
SHA-256 | 62d48fec6da2920518cfbf331f251078d85c51ab0a1e30e21ab38e0edd6f3b51
Arm Mali r45p0 Broken State Use-After-Free
Posted May 21, 2024
Authored by Jann Horn, Google Security Research

Arm Mali versions since r45p0 suffer from a broken KBASE_USER_BUF_STATE_* state machine for userspace mappings that can lead to a use-after-free condition.

tags | exploit
advisories | CVE-2024-1065
SHA-256 | 6886ec45419b22efaa4183177ef852a685bb4e3e8f20fe513a25b84dccef3243
Arm Mali 5th Gen Dangling ATE
Posted May 13, 2024
Authored by Jann Horn, Google Security Research

In mmu_insert_pages_no_flush(), when a HUGE_HEAD page is mapped to a 2M aligned GPU address, this is done by creating an Address Translation Entry (ATE) at MIDGARD_MMU_LEVEL(2) (in other words, an ATE covering 2M of memory is created). This is wrong because it assumes that at least 2M of memory should be mapped. mmu_insert_pages_no_flush() can be called in cases where less than that should be mapped, for example when creating a short alias of a big native allocation. Later, when kbase_mmu_teardown_pgd_pages() tries to tear down this region, it will detect that unmapping a subsection of a 2M ATE is not possible and write a log message complaining about this, but then proceed as if everything was fine while leaving the ATE intact. This means the higher-level code will proceed to free the referenced physical memory while the ATE still points to it.

tags | exploit
advisories | CVE-2024-0671
SHA-256 | 02b7002e9ef87f42111b8b994ec26a71eab28f5f71c23d3899c25a6cc7a85c92
PowerVR PMRMMapPMR() Writability Check
Posted Apr 25, 2024
Authored by Jann Horn, Google Security Research

PowerVR has a security issue where a writability check in PMRMMapPMR() does not clear VM_MAYWRITE.

tags | exploit
SHA-256 | 3c6be466dbc5e6f19541750720a0f82bfbd11613fafa5557f44c1df26aa893b2
Windows Kernel Subkey List Use-After-Free
Posted Apr 11, 2024
Authored by Google Security Research, mjurczyk

The Windows Kernel suffers from a subkey list use-after-free vulnerability due to a mishandling of partial success in CmpAddSubKeyEx.

tags | exploit, kernel
systems | windows
advisories | CVE-2024-26182
SHA-256 | 371f9505662bb6a768bb624f24a62e46fef4ad9feab889c6189fe75092e31989
PowerVR DevmemIntUnexportCtx Use-After-Free
Posted Apr 8, 2024
Authored by Jann Horn, Google Security Research

PowerVR has an issue where DevmemIntUnexportCtx destroys export before unlinking it, leading to a use-after-free condition.

tags | exploit
SHA-256 | 6f9202099fe090be7419d76b62ea9327f8db8be77898b1207baaaa4a3a3cd10e
Linux 6.5 Kernel Pointer Leak
Posted Apr 5, 2024
Authored by Jann Horn, Google Security Research

Linux versions starting with 6.5 suffer from a read-after-type-change of folio in cachestat() that leads to a kernel pointer leak.

tags | exploit, kernel
systems | linux
advisories | CVE-2024-26630
SHA-256 | 9ed32c7cf46a882e510759c307e0ac2758225c4d00df31c8c83be548a01fd482
Google Pixel MFC H264 Processing Memory Corruption
Posted Apr 3, 2024
Authored by Google Security Research, natashenka

There is a memory corruption issue in the MFC media processing core on the Pixel 7. It occurs when decoding a malformed H264 stream in Chrome, likely to due to an out of bounds quantization parameter. A write to plane 0 that occurs during macroblock decoding extends past the allocated bounds of the plane, and can overwrite the motion vector (MV) buffer or cause a crash if the adjacent address is unmapped. Both of these allocations are DMA buffers and it is unclear whether this condition is exploitable.

tags | exploit
advisories | CVE-2024-27228
SHA-256 | 03533e71b8963179a0ae3ad68550b9e5e705a79dd75292d232b287f1c47b89f6
PowerVR RGXCreateZSBufferKM2 Use-After-Free
Posted Apr 2, 2024
Authored by Jann Horn, Google Security Research

PowerVR has an issue where the RGXCreateZSBufferKM2 error path frees object while on list.

tags | exploit
SHA-256 | b77c7757a3ce5ef36d49453304cff99bfbbd56c1ff428ecdf3cd2b4c3033e628
dav1d Integer Overflow / Out-Of-Bounds Write
Posted Mar 18, 2024
Authored by Ivan Fratric, Google Security Research, Nick Galloway

There is an integer overflow in dav1d when decoding an AV1 video with large width/height. The integer overflow may result in an out-of-bounds write.

tags | exploit, overflow
advisories | CVE-2024-1580
SHA-256 | 258b775b05e2d4378551ee4e66e5c90a5df4e7d9ef5dc5c37abec0ba66db8a8e
Telegram For Android Connection::onReceivedData Use-After-Free
Posted Feb 28, 2024
Authored by Google Security Research, Mark Brand

In the tgnet library used in Telegram messenger for Android, there is a use-after-free vulnerability in Connection::onReceivedData that can be triggered remotely.

tags | exploit
SHA-256 | bca6a67a76c752f1ecdcd8907312e1eb9daa4808f56fcf845f91420c4d98f5d4
Chrome chrome.pageCapture.saveAsMHTML() Extension API Blocked Origin Bypass
Posted Feb 19, 2024
Authored by Jann Horn, Google Security Research

Chrome has an issue where the chrome.pageCapture.saveAsMHTML() extension API can be used on blocked origins due to a racy access check.

tags | exploit
advisories | CVE-2024-0811
SHA-256 | c081d9b3a89b0a80ccfbb9fc08c3373284b83957b305d8759f551dfbed038c66
MediaTek WLAN Driver Memory Corruption
Posted Feb 8, 2024
Authored by Google Security Research, Seth Jenkins

The MediaTek WLAN driver has VFS read handlers that do not check buffer size leading to userland memory corruption.

tags | exploit
SHA-256 | e02f5b1f1d435ca3340b9ddef6433031cb241ad315800f041e8e425d3ac596dd
Chrome content::NavigationURLLoaderImpl::FallbackToNonInterceptedRequest Heap Use-After-Free
Posted Jan 26, 2024
Authored by Google Security Research, Glazvunov

Chrome suffers from a heap use-after-free vulnerability in content::NavigationURLLoaderImpl::FallbackToNonInterceptedRequest.

tags | exploit
advisories | CVE-2023-6112
SHA-256 | 5991378cd81b0bd15e90459d13e7396782910b67862cf292906e095dca2e9175
Linux 5.6 io_uring Cred Refcount Overflow
Posted Jan 19, 2024
Authored by Jann Horn, Google Security Research

Linux versions 5.6 and above appear to suffer from a cred refcount overflow when handling approximately 39 gigabytes of memory usage via io_uring.

tags | exploit, overflow
systems | linux
SHA-256 | eb6cd67301b0a3753b8bd45f998819605fcd09521aac98683535cba1e70af180
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