The Linux kernel through 3.17.4 does not properly restrict dropping of supplemental group memberships in certain namespace scenarios, which allows local users to bypass intended file permissions by leveraging a POSIX ACL containing an entry for the group category that is more restrictive than the entry for the other category, aka a "negative groups" issue, related to kernel/groups.c, kernel/uid16.c, and kernel/user_namespace.c.
References
Configurations
Configuration 1 (hide)
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History
21 Nov 2024, 02:20
Type | Values Removed | Values Added |
---|---|---|
References | () http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147864.html - | |
References | () http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147973.html - | |
References | () http://thread.gmane.org/gmane.linux.man/7385/ - Exploit | |
References | () http://www.mandriva.com/security/advisories?name=MDVSA-2015:058 - | |
References | () http://www.openwall.com/lists/oss-security/2014/11/20/4 - | |
References | () http://www.securityfocus.com/bid/71154 - | |
References | () http://www.ubuntu.com/usn/USN-2515-1 - | |
References | () http://www.ubuntu.com/usn/USN-2516-1 - | |
References | () http://www.ubuntu.com/usn/USN-2517-1 - | |
References | () http://www.ubuntu.com/usn/USN-2518-1 - |
Information
Published : 2014-11-30 01:59
Updated : 2024-11-21 02:20
NVD link : CVE-2014-8989
Mitre link : CVE-2014-8989
CVE.ORG link : CVE-2014-8989
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-264
Permissions, Privileges, and Access Controls