CVE-2016-7097

MEDIUM

Linux Kernel < 4.8.2 - Improper Authorization via setxattr setgid Bit Preservation

Title source: llm
STIX 2.1

Description

The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.

References (17)

Core 17
Core References
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-3146-2
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-3146-1
Vendor Advisory x_refsource_confirm
https://source.android.com/security/bulletin/2017-04-01
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/92659
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:2669
Patch, Third Party Advisory mailing-list x_refsource_mlist
http://www.spinics.net/lists/linux-fsdevel/msg98328.html
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/08/26/3
Vendor Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2017-0817.html
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-3147-1
Issue Tracking, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1368938
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:2077
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:1842
Patch mailing-list x_refsource_mlist
http://marc.info/?l=linux-fsdevel&m=147162313630259&w=2
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1038201

Scores

CVSS v3 4.4
EPSS 0.0038
EPSS Percentile 29.4%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Details

CWE
CWE-285
Status published
Products (1)
linux/linux_kernel < 4.8.2
Published Oct 16, 2016
Tracked Since Feb 18, 2026