Description
A security flaw was discovered in the nl80211_set_rekey_data() function in net/wireless/nl80211.c in the Linux kernel through 4.13.3. This function does not check whether the required attributes are present in a Netlink request. This request can be issued by a user with the CAP_NET_ADMIN capability and may result in a NULL pointer dereference and system crash.
References (9)
Core 9
Core References
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211.git/commit/?id=e785fa0a164aa11001cba931367c7f94ffaff888
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.novell.com/show_bug.cgi?id=1058410
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3583-2/
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/100855
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2017/dsa-3981
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3583-1/
Mailing List, Patch, Third Party Advisory x_refsource_confirm
http://seclists.org/oss-sec/2017/q3/437
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1491046
Patch, Third Party Advisory x_refsource_confirm
https://marc.info/?t=150525503100001&r=1&w=2
Scores
CVSS v3
4.4
EPSS
0.0047
EPSS Percentile
37.6%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-476
Status
published
Products (6)
canonical/ubuntu_linux
12.04
canonical/ubuntu_linux
14.04
debian/debian_linux
8.0
debian/debian_linux
9.0
linux/linux_kernel
< 4.13.3
n/a/kernel since v3.1-rc1 through v4.13
kernel since v3.1-rc1 through v4.13
Published
Sep 21, 2017
Tracked Since
Feb 18, 2026