Tesseract Ocr
CVE-2021-36081
HIGH
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
1DescriptionNVD
Tesseract OCR 5.0.0-alpha-20201231 has a one_ell_conflict use-after-free during a strpbrk call.
AnalysisAI
Tesseract OCR 5.0.0-alpha-20201231 has a one_ell_conflict use-after-free during a strpbrk call. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available.
Technical ContextAI
This vulnerability is classified as Use After Free (CWE-416), which allows attackers to access freed memory to execute arbitrary code or crash the application. Tesseract OCR 5.0.0-alpha-20201231 has a one_ell_conflict use-after-free during a strpbrk call. Affected products include: Tesseract Ocr Project Tesseract Ocr.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Use smart pointers or garbage-collected languages. Set pointers to NULL after freeing. Enable memory sanitizers.
More in Tesseract Ocr
View allHeap out-of-bounds write and read in Tesseract OCR Engine 5.5.3 and earlier allows an attacker who can supply a crafted
Stack-based buffer overflow in Tesseract OCR 5.5.3 and earlier corrupts the stack during legacy engine initialization, e
Heap out-of-bounds write in Tesseract OCR 5.5.3 and earlier allows an attacker who supplies a crafted .traineddata langu
Heap out-of-bounds write in Tesseract OCR 5.5.3 and earlier allows an attacker who controls the loaded .traineddata mode
Heap out-of-bounds write in Tesseract OCR 5.5.3 and earlier allows an attacker who controls a crafted `.traineddata` mod
Heap corruption in Tesseract OCR 5.5.3 and earlier allows an attacker who can supply a malicious unicharset file to corr
Denial of service in Tesseract OCR Engine 5.5.3 and earlier allows a local attacker to crash any process that loads a cr
Out-of-bounds write in Tesseract OCR engine version 5.5.3 and earlier allows an attacker who can supply a crafted `.trai
Heap out-of-bounds write in Tesseract OCR engine prior to 5.5.3 is triggered by a crafted LSTM .traineddata model file t
Heap out-of-bounds read in Tesseract OCR prior to version 5.5.3 allows an attacker who can supply a crafted .traineddata
Same weakness CWE-416 – Use After Free
View allSame technique Information Disclosure
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External POC / Exploit Code
Leaving vuln.today