CVE-2014-8989
Medium
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.
SeverityMedium
CVSS4.6
Exploit probability—
Product
Linux Kernel
PublishedNov 30, 2014
First seenNov 30, 2014
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v ≤ 3.17.3, 3.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5, 3.0.6, 3.0.7, 3.0.8, 3.0.9, 3.0.10, 3.0.11, 3.0.12, 3.0.13, 3.0.14, 3.0.15, 3.0.16, 3.0.17, 3.0.18, 3.0.19, 3.0.20, 3.0.21, 3.0.22, 3.0.23, 3.0.24, 3.0.25, 3.0.26, 3.0.27, 3.0.28, 3.0.29, 3.0.30, 3.0.31, 3.0.32, 3.0.33, 3.0.34, 3.0.35, 3.0.36, 3.0.37, 3.0.38, 3.0.39, 3.0.40, 3.0.41, 3.0.42, 3.0.43, 3.0.44, 3.0.45, 3.0.46, 3.0.47, 3.0.48, 3.0.49, 3.0.50, 3.0.51, 3.0.52, 3.0.53, 3.0.54, 3.0.55, 3.0.56, 3.0.57, 3.0.58, 3.0.59, 3.0.60, 3.0.61, 3.0.62, 3.0.63, 3.0.64, 3.0.65, 3.0.66, 3.0.67, 3.0.68, 3.1, 3.1.1, 3.1.2, 3.1.3, 3.1.4, 3.1.5, 3.1.6, 3.1.7, 3.1.8, 3.1.9, 3.1.10, 3.2, 3.10, 3.10.0, 3.10.1, 3.10.2, 3.10.3, 3.10.4, 3.10.5, 3.10.6, 3.10.7, 3.10.8, 3.10.9, 3.10.10, 3.10.11, 3.10.12, 3.10.13, 3.10.14, 3.10.15, 3.10.16, 3.10.17, 3.10.18, 3.10.19, 3.10.20, 3.10.21, 3.10.22, 3.10.23, 3.10.24, 3.10.25, 3.10.26, 3.10.27, 3.10.28, 3.10.29, 3.11, 3.11.1, 3.11.2, 3.11.3, 3.11.4, 3.11.5, 3.11.6, 3.11.7, 3.11.8, 3.11.9, 3.11.10, 3.12, 3.12.1, 3.12.2, 3.12.3, 3.12.4, 3.12.5, 3.12.6, 3.12.7, 3.12.8, 3.12.9, 3.12.10, 3.12.11, 3.12.12, 3.12.13, 3.12.14, 3.12.15, 3.12.16, 3.12.17, 3.13, 3.13.1, 3.13.2, 3.13.3, 3.13.4, 3.13.5, 3.13.6, 3.13.7, 3.13.8, 3.13.9, 3.13.10, 3.13.11, 3.14, 3.14.1, 3.14.2, 3.14.3, 3.14.4, 3.14.5, 3.15, 3.15.1, 3.15.2, 3.15.3, 3.15.4, 3.15.5, 3.15.6, 3.15.7, 3.15.8, 3.16.0 | — |
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