Cyber Resilience

CVE-2020-23707

MediumPublic PoC

Published: 15 July 2021

Published
15 July 2021
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score 0.0036 58.6th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2020-23707 is a medium-severity Out-of-bounds Write (CWE-787) vulnerability in Ok-File-Formats Project Ok-File-Formats. Its CVSS base score is 6.5 (Medium).

Operationally, ranked in the top 41.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

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.

CWE(s)
CWE-787

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

ok-file-formats project
ok-file-formats
≤ 2020-06-26

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SI-16 Memory Protection
addresses: CWE-787

Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.

References