National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-7944 Detail

Description

Integer overflow in X.org libXfixes before 5.0.3 on 32-bit platforms might allow remote X servers to gain privileges via a length value of INT_MAX, which triggers the client to stop reading data and get out of sync.

Source:  MITRE
Description Last Modified:  12/13/2016

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 9.8 CRITICAL
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.openwall.com/lists/oss-security/2016/10/04/2 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/04/4 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/93361 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1036945 Third Party Advisory VDB Entry
https://cgit.freedesktop.org/xorg/lib/libXfixes/commit/?id=61c1039ee23a2d1de712843bed3480654d7ef42e Issue Tracking Patch
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4CE6VJWBMOWLSCH4OP4TAEPIA7NP53ON/ Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GE43MDCRGS4R7MRRZNVSLREHRLU5OHCV/ Third Party Advisory
https://lists.x.org/archives/xorg-announce/2016-October/002720.html Vendor Advisory
https://security.gentoo.org/glsa/201704-03

Technical Details

Vulnerability Type (View All)

  • Integer Overflow or Wraparound (CWE-190)
  • Permissions, Privileges, and Access Control (CWE-264)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:x.org:libxfixes:*:*:*:*:*:*:x86:*
     Show Matching CPE(s)
Up to (including)
5.0.2

Configuration 2 ( hide )
 cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-7944
NVD Published Date:
12/13/2016
NVD Last Modified:
06/30/2017