libwebp: Heap buffer overflow in WebP Codec

Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical)

libwebp: Several integer overflows

Multiple integer overflows in libwebp allows attackers to have unspecified impact via unknown vectors.

Use after free in libwebp

There exists a use after free/double free in libwebp. An attacker can use the ApplyFiltersAndEncode() function and loop through to free best.bw and assign best = trial pointer. The second loop will then return 0 because of an Out of memory error in VP8 encoder, the pointer is still assigned to trial and the AddressSanitizer will attempt a double free.

libwebp: excessive memory allocation when reading a file

A flaw was found in libwebp in versions before 1.0.1. When reading a file libwebp allocates an excessive amount of memory. The highest threat from this vulnerability is to the service availability.

libwebp: out-of-bounds read in ChunkAssignData() in mux/muxinternal.c

A flaw was found in libwebp in versions before 1.0.1. An out-of-bounds read was found in function ChunkAssignData. The highest threat from this vulnerability is to data confidentiality and to the service availability.

libwebp: out-of-bounds read in ChunkVerifyAndAssign() in mux/muxread.c

A flaw was found in libwebp in versions before 1.0.1. An out-of-bounds read was found in function ChunkVerifyAndAssign. The highest threat from this vulnerability is to data confidentiality and to the service availability.

libwebp: use-after-free in EmitFancyRGB() in dec/io_dec.c

A flaw was found in libwebp in versions before 1.0.1. A use-after-free was found due to a thread being killed too early. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

libwebp: heap-based buffer overflow in WebPDecode*Into functions

A flaw was found in libwebp in versions before 1.0.1. A heap-based buffer overflow in function WebPDecodeRGBInto is possible due to an invalid check for buffer size. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

libwebp: use of uninitialized value in ReadSymbol()

A use of uninitialized value was found in libwebp in versions before 1.0.1 in ReadSymbol().

libwebp: out-of-bounds read in ShiftBytes()

A heap-based buffer overflow was found in libwebp in versions before 1.0.1 in ShiftBytes().

libwebp: out-of-bounds read in WebPMuxCreateInternal()

A heap-based buffer overflow was found in libwebp in versions before 1.0.1 in GetLE24().

libwebp: heap-based buffer overflow in PutLE16()

A heap-based buffer overflow was found in libwebp in versions before 1.0.1 in PutLE16().

libwebp: out-of-bounds read in ApplyFilter()

A heap-based buffer overflow was found in libwebp in versions before 1.0.1 in ApplyFilter().

libwebp: out-of-bounds read in WebPMuxCreateInternal

A heap-based buffer overflow was found in libwebp in versions before 1.0.1 in GetLE16().

In libwebp 0.5.1, there is a double free bug in libwebpmux.