CVE-2014-8989
- State
- Published
- Severity
- Not scored
- Published
- Nov 30, 2014
- Updated
- Aug 6, 2024
- Reserved
- Nov 19, 2014
Description
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.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- FEDORA-2015-0517vendor-advisory
- USN-2515-1vendor-advisory
- 71154vdb-entry
- USN-2518-1vendor-advisory
- MDVSA-2015:058vendor-advisory
- FEDORA-2015-0515vendor-advisory
- http://thread.gmane.org/gmane.linux.man/7385/
- USN-2517-1vendor-advisory
- [oss-security] 20141120 Re: Linux user namespaces can bypass group-based restrictions - Linux kernelmailing-list
- USN-2516-1vendor-advisory
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