Home/CVE/GzipSource does not handle an exception that might be raised when parsing a malformed gzip buffer. This may lead to deni
CVE

CVE-2023-3635

GzipSource does not handle an exception that might be raised when parsing a malformed gzip buffer. This may lead to deni

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.

MEDIUM · CVSS 5.9 EPSS 0.00567
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-195Signed to Unsigned Conversion Error
CWE-681Incorrect Conversion between Numeric Types
▤

Affected Products & Versions

2
squareup okio>= 0.5.0 and < 1.17.6
squareup okio>= 2.0.0 and < 3.4.0
▤

Affected Packages

2
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Maven com.squareup.okio:okio MODERATE fixed in 3.4.0
Maven com.squareup.okio:okio-jvm MODERATE fixed in 3.4.0
⚠

Public Exploits & PoCs

1
pocresearch.jfrog.com · okio-gzip-source-unhandled-exception-dos-xray-523195research.jfrog.com
▣

Scoring & Timeline

5.9
MEDIUM · CVSS v3.1 · reefs@jfrog.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD12 Jul 2023 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

6
rhsaRHSA-2024:6667Important
rhsaRHSA-2024:1353Moderate
rhsaRHSA-2023:7247Critical
rhsaRHSA-2024:3385Important
rhsaRHSA-2023:5165Important
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/square/okio/commit/81bce1a30af244550b0324597720e4799281da7bPatch
Intelligence Graph · click any node to traverse
CVETechnique ActorTool Family
drag to reposition · click any node to traverse · button top-right enlarges
External lookups - second-class, for what we don’t hold ourselves
NVDCVE.orgCISAVulnersExploit-DBGitHub PoCVulnCheck KEVGreyNoise
Vulnerabilities
CISA KEV catalog
CWE weaknesses
CAPEC attack patterns
Package vulnerabilities
Threat intelligence
Threat actors
Tools & malware
ATT&CK techniques
IOCs
Detection & defense
Sigma rules
YARA rules
Atomic Red Team tests
D3FEND countermeasures
Compliance
NIST 800-53
ISO 27001:2022
SOC 2 TSC
PCI-DSS v4.0
CIS Controls v8.1
About
All capabilities
Live statistics
Data sources
Privacy policy
Terms of service
threatengine.sh  ·  Open-source threat intelligence platform  ·  100+ authoritative sources  ·  Every fact traces to its origin