CVE-2016-6298

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Summary

CVECVE-2016-6298
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-09-01 23:59:01 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionThe _Rsa15 class in the RSA 1.5 algorithm implementation in jwa.py in jwcrypto before 0.3.2 lacks the Random Filling protection mechanism, which makes it easier for remote attackers to obtain cleartext data via a Million Message Attack (MMA).

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

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

EPSS: 0.003650000 probability, percentile 0.584780000 (date 2026-05-06)

Problem Types: CWE-200 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.3MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
2.0[email protected]Primary4.3AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

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

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None

AV:N/AC:M/Au:N/C:P/I:N/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Latchset Jwcrypto All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
JWCrypto CVE-2016-6298 Information Disclosure Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Broken Link, Third Party Advisory, VDB Entry
Fix for CVE-2016-6298 by simo5 · Pull Request #66 · latchset/jwcrypto · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Issue Tracking, Patch
CVE-2016-6298: Million Messages Attack vulnerability · Issue #65 · latchset/jwcrypto · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Issue Tracking, Vendor Advisory
CVE-2016-6298: Million Messages Attack mitigation · latchset/jwcrypto@eb5be5b · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Issue Tracking, Patch, Vendor Advisory
Release Security Release CVE-2016-6298 · latchset/jwcrypto · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch, Vendor Advisory
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