Description
The crypto_skcipher_init_tfm function in crypto/skcipher.c in the Linux kernel through 4.11.2 relies on a setkey function that lacks a key-size check, which allows local users to cause a denial of service (NULL pointer dereference) via a crafted application.
References (3)
Core 3
Core References
Patch x_refsource_confirm
https://github.com/torvalds/linux/commit/9933e113c2e87a9f46a40fde8dafbf801dca1ab9
Patch x_refsource_confirm
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9933e113c2e87a9f46a40fde8dafbf801dca1ab9
Mailing List, Patch x_refsource_confirm
https://patchwork.kernel.org/patch/9718933/
Scores
CVSS v3
5.5
EPSS
0.0004
EPSS Percentile
13.2%
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 (1)
linux/linux_kernel
< 4.11.2
Published
May 23, 2017
Tracked Since
Feb 18, 2026