漏洞信息
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Vulnerability Title
Tesseract: Heap out-of-bounds write in GenericVector<T>::read due to independent reserved/size_used_ fields
Vulnerability Description
Tesseract is an open source OCR engine. In version 5.5.3 and earlier, the callback form of GenericVector::read in src/ccutil/genericvector.h reads the independent int32 fields reserved and size_used_ from a .traineddata model without a cap or an invariant check. reserve(reserved) allocates the backing array, but the callback loop writes size_used_ elements. A crafted TESSDATA_INTTEMP component with version_id 4 or later can therefore set reserved to a small value and size_used_ to a large value when fontinfo_table_.read(fp, read_info) is called from src/classify/intproto.cpp, causing a heap out-of-bounds write of FontInfo structures, 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src/ccutil/genericvector.h中的GenericVector::read读取.traineddata模型时未对reserved和size_used_字段进行上限或不变量检查,特制的TESSDATA_INTTEMP组件可设置reserved为小值、size_
CVSS Information
N/A
Vulnerability Type
N/A