Cyber Resilience

CVE-2023-3635

MediumPublic PoC

Published: 12 July 2023

Published
12 July 2023
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0057 69.0th percentile
Risk Priority 12 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-3635 is a medium-severity Signed to Unsigned Conversion Error (CWE-195) vulnerability in Squareup Okio. Its CVSS base score is 5.9 (Medium).

Operationally, ranked in the top 31.0% 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

GzipSource does not handle an exception that might be raised when parsing a malformed gzip buffer. This may lead to denial of service of the Okio client when handling a crafted GZIP archive, by using the GzipSource class.

CWE(s)
CWE-195CWE-681

Related Threats

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

Affected Assets

squareup
okio
0.5.0 — 1.17.6 · 2.0.0 — 3.4.0

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References