CVE-2017-12957

There is a heap-based buffer over-read in libexiv2 in Exiv2 0.26 that is triggered in the Exiv2::Image::io function in image.cpp. It will lead to remote denial of service.

There is a heap-based buffer over-read in libexiv2 in Exiv2 0.26 that is triggered in the Exiv2::Image::io function in image.cpp. It will lead to remote denial of service.

There is a heap-based buffer over-read in libexiv2 in Exiv2 0.26 that is triggered in the Exiv2::Image::io function in image.cpp. It will lead to remote denial of service.

There is a heap-based buffer over-read in libexiv2 in Exiv2 0.26 that is triggered in the Exiv2::Image::io function in image.cpp. It will lead to remote denial of service.

There is a heap-based buffer over-read in libexiv2 in Exiv2 0.26 that is triggered in the Exiv2::Image::io function in image.cpp. It will lead to remote denial of service.

There is a heap-based buffer over-read in libexiv2 in Exiv2 0.26 that is triggered in the Exiv2::Image::io function in image.cpp. It will lead to remote denial of service.

Opening an image created on certain pentax cameras with gwenview, which uses the exiv2 library, causes gwenview to segfault. Exiv2 upstream created a patch to resolve this problem (bugfix - applies only to mga6).

The following security issues were also fixed: *Heap overflow in Exiv2::Image::printIFDStructure (CVE-2017-11336) *Invalid free in the Action::TaskFactory::cleanup function (CVE-2017-11337) *Infinite loop in the Exiv2::Image::printIFDStructure function of image.cpp (CVE-2017-11338) *Heap-based buffer overflow in the Image::printIFDStructure function of image.cpp (CVE-2017-11339) *Segmentation fault in the XmpParser::terminate() function (CVE-2017-11340) *Illegal address access in the extend_alias_table function in localealias.c (CVE-2017-11553) *Floating point exception in the Exiv2::ValueType function (CVE-2017-11591) *Alloc-dealloc-mismatch in Exiv2::FileIo::seek (CVE-2017-11592) *Reachable assertion in the Internal::TiffReader::visitDirectory function in tiffvisitor.cpp (CVE-2017-11683) *Heap-based buffer overflow in basicio.cpp (CVE-2017-12955) *Illegal address access in Exiv2::FileIo::pathabi:cxx11 in basicio.cpp (CVE-2017-12956) *Heap-based buffer over-read in the Exiv2::Image::io function in image.cpp (CVE-2017-12957) *Bad free in Exiv2::Image::~Image (CVE-2017-14857) *Invalid memory address dereference in Exiv2::DataValue::read (CVE-2017-14859) *Heap-buffer-overflow in Exiv2::Jp2Image::readMetadata (CVE-2017-14860) *Invalid memory address dereference in Exiv2::StringValueBase::read (CVE-2017-14862) *Invalid memory address dereference in Exiv2::getULong (CVE-2017-14864)

These are all security issues fixed in the exiv2-0.27.4-1.2 package on the GA media of openSUSE Tumbleweed.

This update for exiv2 to 0.26 fixes the following security issues:

• CVE-2017-14864: Prevent invalid memory address dereference in Exiv2::getULong that could have caused a segmentation fault and application crash, which leads to denial of service (bsc#1060995).
• CVE-2017-14862: Prevent invalid memory address dereference in Exiv2::DataValue::read that could have caused a segmentation fault and application crash, which leads to denial of service (bsc#1060996).
• CVE-2017-14859: Prevent invalid memory address dereference in Exiv2::StringValueBase::read that could have caused a segmentation fault and application crash, which leads to denial of service (bsc#1061000).
• CVE-2017-14860: Prevent heap-based buffer over-read in the Exiv2::Jp2Image::readMetadata function via a crafted input that could have lead to a denial of service attack (bsc#1061023).
• CVE-2017-11337: Prevent invalid free in the Action::TaskFactory::cleanup function via a crafted input that could have lead to a remote denial of service attack (bsc#1048883).
• CVE-2017-11338: Prevent infinite loop in the Exiv2::Image::printIFDStructure function via a crafted input that could have lead to a remote denial of service attack (bsc#1048883).
• CVE-2017-11339: Prevent heap-based buffer overflow in the Image::printIFDStructure function via a crafted input that could have lead to a remote denial of service attack (bsc#1048883).
• CVE-2017-11340: Prevent Segmentation fault in the XmpParser::terminate() function via a crafted input that could have lead to a remote denial of service attack (bsc#1048883).
• CVE-2017-12955: Prevent heap-based buffer overflow. The vulnerability caused an out-of-bounds write in Exiv2::Image::printIFDStructure(), which may lead to remote denial of service or possibly unspecified other impact (bsc#1054593).
• CVE-2017-12956: Preventn illegal address access in Exiv2::FileIo::pathabi:cxx11 that could have lead to remote denial of service (bsc#1054592).
• CVE-2017-12957: Prevent heap-based buffer over-read that was triggered in the Exiv2::Image::io function and could have lead to remote denial of service (bsc#1054590).
• CVE-2017-11683: Prevent reachable assertion in the Internal::TiffReader::visitDirectory function that could have lead to a remote denial of service attack via crafted input (bsc#1051188).
• CVE-2017-11591: Prevent Floating point exception in the Exiv2::ValueType function that could have lead to a remote denial of service attack via crafted input (bsc#1050257).
• CVE-2017-11553: Prevent illegal address access in the extend_alias_table function via a crafted input could have lead to remote denial of service.
• CVE-2017-11592: Prevent mismatched Memory Management Routines vulnerability in the Exiv2::FileIo::seek function that could have lead to a remote denial of service attack (heap memory corruption) via crafted input.