TI-2020-14648 Aliases CVE-2020-23707 GHSA-3587-cr9c-7c76

A heap-based buffer overflow vulnerability in the function…

LOW 31CWE-787Published 2021-07-15 · Updated 2024-08-04

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_progressive() at ok_jpg.c:1054 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 0.01098 65th 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-2020-23707
2026-10-03 Alias added: GHSA-3587-cr9c-7c76

References

Exploit 1

https://github.com/brackeen/ok-file-formats/issues/8

Other 1

https://cwe.mitre.org/data/definitions/122.html

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

See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences