CVE-2021-36081
Summary
| CVE | CVE-2021-36081 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-07-01 03:15:08 UTC |
| Updated | 2026-09-14 14:14:21 UTC |
| Description | Tesseract OCR 5.0.0-alpha-20201231 has a one_ell_conflict use-after-free during a strpbrk call. |
Risk And Classification
Primary CVSS: v3.1 7.8 HIGH from [email protected]
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS: 0.008870000 probability, percentile 0.572940000 (date 2026-09-14)
Problem Types: CWE-416 | n/a
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| 2.0 | [email protected] | Primary | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
NoneUser Interaction
RequiredScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
MediumAuthentication
NoneConfidentiality
PartialIntegrity
PartialAvailability
PartialAV:N/AC:M/Au:N/C:P/I:P/A:P
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | - | All | All | All |
| Application | Tesseract-ocr | Tesseract Ocr | 5.0.0 | alpha-20201231 | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| oss-fuzz-vulns/OSV-2021-211.yaml at main · google/oss-fuzz-vulns · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | Third Party Advisory |
| 29698 - oss-fuzz - OSS-Fuzz: Fuzzing the planet - Monorail | af854a3a-2127-422b-91ae-364da2661108 | bugs.chromium.org | Exploit, Issue Tracking, Patch, Third Party Advisory |
| Remove Python training scripts which were moved to tesstrain · tesseract-ocr/tesseract@e6f1562 · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | Patch, Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 183636 Debian Security Update for tesseract (CVE-2021-36081)