National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2015-8709 Detail

Description

** DISPUTED ** kernel/ptrace.c in the Linux kernel through 4.4.1 mishandles uid and gid mappings, which allows local users to gain privileges by establishing a user namespace, waiting for a root process to enter that namespace with an unsafe uid or gid, and then using the ptrace system call. NOTE: the vendor states "there is no kernel bug here."

Source:  MITRE
Description Last Modified:  02/07/2016

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.0 HIGH
Vector: AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 1.0


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

CVSS v2.0 Severity and Metrics:

Base Score: 6.9 MEDIUM
Vector: (AV:L/AC:M/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 3.4


Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
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://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00019.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00025.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00026.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00027.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00028.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00029.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00030.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00031.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00032.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00033.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00034.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00036.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00037.html
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html
http://marc.info/?l=linux-kernel&m=145204362722256&w=2
http://marc.info/?l=linux-kernel&m=145204641422813&w=2
http://www.debian.org/security/2016/dsa-3434
http://www.openwall.com/lists/oss-security/2015/12/17/12
http://www.openwall.com/lists/oss-security/2015/12/31/5
http://www.securityfocus.com/bid/79899
http://www.securitytracker.com/id/1034899
https://bugzilla.redhat.com/show_bug.cgi?id=1295287
https://lkml.org/lkml/2015/12/25/71

Technical Details

Vulnerability Type (View All)

  • Permissions, Privileges, and Access Control (CWE-264)

Change History

8 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2015-8709
NVD Published Date:
02/07/2016
NVD Last Modified:
11/03/2017