漏洞信息
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Vulnerability Title
Tesseract: Heap out-of-bounds write in Classify::ReadIntTemplates via unvalidated counts in crafted .traineddata
Vulnerability Description
Tesseract is an open source OCR engine. In version 5.5.3 and earlier, Classify::ReadIntTemplates in src/classify/intproto.cpp reads NumClassPruners, NumClasses, and NumProtoSets from the TESSDATA_INTTEMP component of a crafted .traineddata file and uses those values as loop bounds without validating them against MAX_NUM_CLASS_PRUNERS, MAX_NUM_CLASSES, and MAX_NUM_PROTO_SETS. The loops store heap pointers into fixed-capacity ClassPruners and ProtoSets arrays in INT_TEMPLATES_STRUCT and INT_CLASS_STRUCT, so an oversized count causes heap out-of-bounds pointer writes during legacy-classifier initialization before OCR begins, resulting in heap corruption, a crash, or potentially controlled corruption. No fixed release is available as of this review.
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Vulnerability Type
跨界内存写
Vulnerability Title
tesseract-ocr Tesseract 缓冲区错误漏洞
Vulnerability Description
tesseract-ocr Tesseract是tesseract-ocr组织的一款可将图像文字转换为可编辑文本的光学字符识别组件。 tesseract-ocr Tesseract 5.5.3及之前版本存在缓冲区错误漏洞,该漏洞源于Classify::ReadIntTemplates函数在src/classify/intproto.cpp中从特制.traineddata文件的TESSDATA_INTTEMP组件读取NumClassPruners、NumClasses和NumProtoSets,未将这些值与
CVSS Information
N/A
Vulnerability Type
N/A