Description
The assoc_array_insert_into_terminal_node function in lib/assoc_array.c in the Linux kernel before 4.13.11 mishandles node splitting, which allows local users to cause a denial of service (NULL pointer dereference and panic) via a crafted application, as demonstrated by the keyring key type, and key addition and link creation operations.
References (8)
Core 8
Core References
Issue Tracking x_refsource_confirm
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.11
Patch, Vendor Advisory x_refsource_confirm
https://github.com/torvalds/linux/commit/ea6789980fdaa610d7eb63602c746bf6ec70cd2b
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/101678
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1501215
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:0151
Issue Tracking, Patch x_refsource_confirm
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ea6789980fdaa610d7eb63602c746bf6ec70cd2b
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3698-1/
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3698-2/
Scores
CVSS v3
5.5
EPSS
0.0006
EPSS Percentile
17.3%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-476
Status
published
Products (2)
linux/linux_kernel
< 4.13.11
n/a/Linux kernel since 3.13 up to 4.14 (not including)
Linux kernel since 3.13 up to 4.14 (not including)
Published
Nov 22, 2017
Tracked Since
Feb 18, 2026