CVE-2016-3067

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Summary

CVECVE-2016-3067
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-04-21 20:59:00 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionCygwin before 2.5.0 does not properly handle updating permissions when changing users, which allows attackers to gain privileges.

Risk And Classification

Primary CVSS: v3.0 9.8 CRITICAL from [email protected]

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-264 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary9.8CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS v3.0 Breakdown

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

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Cygwin Cygwin All All All All

Vendor Declared Affected Products

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

References

ReferenceSourceLinkTags
sourceware.org Git - newlib-cygwin.git/commit af854a3a-2127-422b-91ae-364da2661108 sourceware.org
Corinna Vinschen - Cygwin 2.5.0-1 af854a3a-2127-422b-91ae-364da2661108 cygwin.com Mailing List, Release Notes, Vendor Advisory
Corinna Vinschen - TEST RELEASE: Cygwin 2.5.0-0.4 af854a3a-2127-422b-91ae-364da2661108 cygwin.com Mailing List, Release Notes, Vendor Advisory
David Willis - RE: Possible Security Hole in SSHD w/ CYGWIN? af854a3a-2127-422b-91ae-364da2661108 cygwin.com Mailing List, Release Notes, Vendor Advisory
Yaakov Selkowitz - CVE-2016-3067: network privilege escalation in Cygwin set(e)uid af854a3a-2127-422b-91ae-364da2661108 cygwin.com Mailing List, Release Notes, Vendor Advisory
sourceware.org Git - newlib-cygwin.git/commit MITRE sourceware.org
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