CVE-2026-119338: tesseract-ocr tesseract, грешка в паметта

Описание

Оригинално описание

Tesseract is an open source OCR engine. From 5.4.0 until 5.5.4, AppendLinePolygon in src/api/pagerenderer.cpp destroys the caller-owned right-to-left Pta accumulator while receiving it by value, leaving line_top_rtl_pts and line_bottom_rtl_pts dangling. On an upright Hebrew or Arabic page at the default PAGE XML level, POLYGONFLAG with a false skewed_flag enters the vulnerable calls, while LEVELFLAG greater than zero provides an alternative gate. The calls repeatedly read and free the stale object, causing a double free and use after free and allowing corrupted coordinates to reach RecalcPolygonline. This issue is fixed in version 5.5.4.

Засегнати продукти

• tesseract-ocr tesseract: >= 5.4.0, < 5.5.4

Вид слабост

• CWE-125 Четене извън границите на буфера
• CWE-415 Двойно освобождаване на памет (Double Free)
• CWE-416 Използване на памет след освобождаване (Use-After-Free)

История

Други уязвимости в tesseract-ocr tesseract

• 0.0CVE-2026-119341
• 5.5CVE-2026-119340
• 5.5CVE-2026-119339
• 6.9CVE-2026-88054
• 8.6CVE-2026-88053

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-119338
• https://nvd.nist.gov/vuln/detail/CVE-2026-119338
• https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-vf7v-2h4f-6f4j
• https://github.com/tesseract-ocr/tesseract/pull/4647
• https://github.com/tesseract-ocr/tesseract/commit/fa52414ff1fd13ae4b00048d2498f9141b0bc2eb
• https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.4