CVE-2018-20836

HIGH

Linux Kernel < 3.16.72 - Race Condition

Title source: rule
STIX 2.1

Description

An issue was discovered in the Linux kernel before 4.20. There is a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free.

References (14)

Core 14
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/108196
Third Party Advisory x_refsource_confirm
https://support.f5.com/csp/article/K11225249
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20190719-0003/
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00014.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4076-1/
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2019/dsa-4495
Mailing List, Third Party Advisory mailing-list x_refsource_bugtraq
https://seclists.org/bugtraq/2019/Aug/13
Mailing List, Third Party Advisory mailing-list x_refsource_bugtraq
https://seclists.org/bugtraq/2019/Aug/18
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2019/dsa-4497
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html

Scores

CVSS v3 8.1
EPSS 0.0383
EPSS Percentile 88.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-362 CWE-416
Status published
Products (17)
canonical/ubuntu_linux 16.04
debian/debian_linux 8.0
debian/debian_linux 9.0
debian/debian_linux 10.0
f5/traffix_signaling_delivery_controller 5.0.0
f5/traffix_signaling_delivery_controller 5.1.0
linux/linux_kernel < 3.16.72
netapp/active_iq_unified_manager 9.5
netapp/hci_compute_node
netapp/snapprotect
... and 7 more
Published May 07, 2019
Tracked Since Feb 18, 2026