CVE-2021-36081 - Vulnerability Details - OpenCVE

Tesseract OCR 5.0.0-alpha-20201231 has a one_ell_conflict use-after-free during a strpbrk call.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00887.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

AND

cpe:2.3:a:tesseract-ocr:tesseract_ocr:5.0.0:alpha-20201231:*:*:*:*:*:*

cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*

No data.

No data.

Project Subscriptions

Vendors	Products
Linux Subscribe	Linux Kernel Subscribe
Tesseract-ocr Subscribe	Tesseract Ocr Subscribe

Advisories

Source	ID	Title
EUVD	EUVD-2021-22714	Tesseract OCR 5.0.0-alpha-20201231 has a one_ell_conflict use-after-free during a strpbrk call.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29698
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/tesseract-ocr/OSV-2021-211.yaml
https://github.com/tesseract-ocr/tesseract/commit/e6f15621c2ab2ecbfabf656942d8ef66f03b2d55

History

Mon, 14 Sep 2026 14:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Tesseract-ocr Tesseract-ocr tesseract Ocr
CPEs	cpe:2.3:a:tesseract_ocr_project:tesseract_ocr:5.0.0:alpha-20201231::::::	cpe:2.3:a:tesseract-ocr:tesseract_ocr:5.0.0:alpha-20201231::::::
Vendors & Products	Tesseract Ocr Project Tesseract Ocr Project tesseract Ocr	Tesseract-ocr Tesseract-ocr tesseract Ocr

Projects

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MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-07-01T02:47:50.000Z

Updated: 2024-08-04T00:47:43.802Z

Reserved: 2021-07-01T00:00:00.000Z

Link: CVE-2021-36081

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-07-01T03:15:08.620

Modified: 2026-09-14T14:14:21.223

Link: CVE-2021-36081

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-416

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