A heap-based buffer overflow vulnerability in the function…
Priority LOW 31CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
A heap-based buffer overflow vulnerability in the function ok_jpg_decode_block_subsequent_scan() ok_jpg.c:1102 of ok-file-formats through 2020-06-26 allows attackers to cause a Denial of Service (DOS) via a crafted jpeg file.
Why it matters now
EPSS 0.0101 63rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ok-file-formats_project:ok-file-formats:*:*:*:*:*:*:*:* | up to 2020-06-26 | Vulnerable | Ok-file-formats Project |
- cpe:2.3:a:ok-file-formats_project:ok-file-formats:*:*:*:*:*:*:*:* Versions up to 2020-06-26 Vulnerable ·Ok-file-formats Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-23706
- 2026-10-03 Alias added: GHSA-68f5-623h-wc9v
References
More Ok-file-formats Project Ok-file-formats vulnerabilities
- TI-2018-14639 ok-file-formats through 2018-10-16 has a heap-based buffer over-read in the ok_mo_decode2 function in ok_mo.c. CVSS 3.1HIGH 8.8
- TI-2021-09443 Heap-based Buffer Overflow vulnerability exists in ok-file-formats 1 via the… CVSS 3.1HIGH 8.8
- TI-2018-14638 ok-file-formats through 2018-10-16 has a heap-based buffer overflow in the ok_csv_decode2 function in ok_csv.c. CVSS 3.0HIGH 8.8
- TI-2018-14637 ok-file-formats through 2018-10-16 has a heap-based buffer overflow in the… CVSS 3.0HIGH 8.8
- TI-2021-18217 ok-file-formats master 2021-9-12 is affected by a buffer overflow in… CVSS 3.1HIGH 7.8
- TI-2021-12085 ok-file-formats through 2021-04-29 has a heap-based buffer overflow in the… CVSS 3.1HIGH 7.8
Sources
- CVE-2020-23706 · CVE Program
- CVE-2020-23706 · NVD
- FIRST EPSS
- GHSA-68f5-623h-wc9v · GitHub Advisory Database · CC BY 4.0
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