Grassroots DICOM Missing release of memory after effective lifetime
A memory leak exists in the Grassroots DICOM library (GDCM). The bug occurs when parsing malformed DICOM files with non-standard VR types in file meta information. The vulnerability leads to vast memory allocations and resource depletion, triggering a denial-of-service condition. A maliciously crafted file can fill the heap in a single read operation without properly releasing it.
An out-of-bounds read vulnerability exists in the JPEGBITSCodec::InternalCode functionality of Grassroot DICOM 3.024. A specially crafted DICOM file can lead to an information leak. An attacker can provide a malicious file to trigger this vulnerability.The function `null_convert` is called based of the value of the malicious DICOM file specifying the intended interpretation of the image pixel data
An out-of-bounds read vulnerability exists in the JPEGBITSCodec::InternalCode functionality of Grassroot DICOM 3.024. A specially crafted DICOM file can lead to an information leak. An attacker can provide a malicious file to trigger this vulnerability.The function `grayscale_convert` is called based of the value of the malicious DICOM file specifying the intended interpretation of the image pixel data
An out-of-bounds read vulnerability exists in the Overlay::GrabOverlayFromPixelData functionality of Grassroot DICOM 3.024. A specially crafted DICOM file can lead to an information leak. An attacker can provide a malicious file to trigger this vulnerability.
An out-of-bounds read vulnerability exists in the RLECodec::DecodeByStreams functionality of Grassroot DICOM 3.024. A specially crafted DICOM file can lead to leaking heap data. An attacker can provide a malicious file to trigger this vulnerability.
An out-of-bounds write vulnerability exists in the Grassroots DICOM library (GDCM). The issue is triggered during parsing of a malformed DICOM file containing encapsulated PixelData fragments (compressed image data stored as multiple fragments). This vulnerability leads to a segmentation fault caused by an out-of-bounds memory access due to unsigned integer underflow in buffer indexing. It is exploitable via file input, simply opening a crafted malicious DICOM file is sufficient to trigger the crash, resulting in a denial-of-service condition.
A heap-based buffer overflow vulnerability exists in the LookupTable::SetLUT functionality of Mathieu Malaterre Grassroot DICOM 3.0.23. A specially crafted malformed file can lead to memory corruption. An attacker can provide a malicious file to trigger this vulnerability.
An out-of-bounds write vulnerability exists in the JPEG2000Codec::DecodeByStreamsCommon functionality of Mathieu Malaterre Grassroot DICOM 3.0.23. A specially crafted DICOM file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.
An out-of-bounds read vulnerability exists in the RAWCodec::DecodeBytes functionality of Mathieu Malaterre Grassroot DICOM 3.0.23. A specially crafted DICOM file can lead to an out-of-bounds read. An attacker can provide a malicious file to trigger this vulnerability.
The JPEGLSCodec::DecodeExtent function in MediaStorageAndFileFormat/gdcmJPEGLSCodec.cxx in Grassroots DICOM (aka GDCM) before 2.6.2 allows remote attackers to obtain sensitive information from process memory or cause a denial of service (application crash) via an embedded JPEG-LS image with dimensions larger than the selected region in a (1) two-dimensional or (2) three-dimensional DICOM image file, which triggers an out-of-bounds read.
Integer overflow in the ImageRegionReader::ReadIntoBuffer function in MediaStorageAndFileFormat/gdcmImageRegionReader.cxx in Grassroots DICOM (aka GDCM) before 2.6.2 allows attackers to execute arbitrary code via crafted header dimensions in a DICOM image file, which triggers a buffer overflow.
The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig module for Perl, allows context-dependent attackers to cause a denial of service (application crash) via an XML document with malformed UTF-8 sequences that trigger a buffer over-read, related to the doProlog function in lib/xmlparse.c, a different vulnerability than CVE-2009-2625 and CVE-2009-3720.
The updatePosition function in lib/xmltok_impl.c in libexpat in Expat 2.0.1, as used in Python, PyXML, w3c-libwww, and other software, allows context-dependent attackers to cause a denial of service (application crash) via an XML document with crafted UTF-8 sequences that trigger a buffer over-read, a different vulnerability than CVE-2009-2625.