CVE-2023-3635

Okio GzipSource unhandled exception Denial of Service

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.

Affected

com.squareup.okio:okio

CVSS v3.1 NVD

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 JFROG

5.9 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

1.25% chance of exploitation in the next 30 days, 69th percentile

Published

2023-07-12

Updated

2024-10-23

Proof-of-concept exploits (1)

• JoshuaASmith/reproducer-okio-cve-2023-36350★ · 2026-10-17

Security advisories

• https://research.jfrog.com/vulnerabilities/okio-gzip-source-unhandled-exception-dos-xray-…
• advisories/GHSA-w33c-445m-f8w7
• square/okio/commit/81bce1a30af244550b0324597720e4799281da7b

References

• CVE Record
• NVD entry