CVE-2018-20836
Linux kernel SAS Expander Synchronous Reference Synchronization Violation
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.
INFO
Published Date :
May 7, 2019, 2:29 p.m.
Last Modified :
Nov. 3, 2022, 2:22 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.2
Public PoC/Exploit Available at Github
CVE-2018-20836 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2018-20836
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-20836.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Map Vulnerabilities into Different Layers of the Container Image
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-20836 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-20836 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Nov. 03, 2022
Action Type Old Value New Value Removed CVSS V3 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00014.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00014.html Mailing List, Third Party Advisory Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html Mailing List, Third Party Advisory Changed Reference Type http://www.securityfocus.com/bid/108196 No Types Assigned http://www.securityfocus.com/bid/108196 Third Party Advisory, VDB Entry Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html No Types Assigned https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html No Types Assigned https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html Mailing List, Third Party Advisory Changed Reference Type https://seclists.org/bugtraq/2019/Aug/13 No Types Assigned https://seclists.org/bugtraq/2019/Aug/13 Mailing List, Third Party Advisory Changed Reference Type https://seclists.org/bugtraq/2019/Aug/18 No Types Assigned https://seclists.org/bugtraq/2019/Aug/18 Mailing List, Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20190719-0003/ No Types Assigned https://security.netapp.com/advisory/ntap-20190719-0003/ Third Party Advisory Changed Reference Type https://support.f5.com/csp/article/K11225249 No Types Assigned https://support.f5.com/csp/article/K11225249 Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4076-1/ No Types Assigned https://usn.ubuntu.com/4076-1/ Third Party Advisory Changed Reference Type https://www.debian.org/security/2019/dsa-4495 No Types Assigned https://www.debian.org/security/2019/dsa-4495 Third Party Advisory Changed Reference Type https://www.debian.org/security/2019/dsa-4497 No Types Assigned https://www.debian.org/security/2019/dsa-4497 Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.20 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 3.16.72 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.17 up to (excluding) 3.18.140 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.19 up to (excluding) 4.4.180 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.175 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.118 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.42 Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:f5:traffix_signaling_delivery_controller:5.0.0:*:*:*:*:*:*:* *cpe:2.3:a:f5:traffix_signaling_delivery_controller:5.1.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:netapp:active_iq_unified_manager:*:*:*:*:*:vmware_vsphere:*:* versions from (including) 9.5 *cpe:2.3:a:netapp:snapprotect:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:solidfire_\&_hci_storage_node:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:storage_replication_adapter_for_clustered_data_ontap:-:*:*:*:*:vmware_vsphere:*:* *cpe:2.3:a:netapp:vasa_provider_for_clustered_data_ontap:*:*:*:*:*:*:*:* versions from (including) 7.2 *cpe:2.3:a:netapp:virtual_storage_console:*:*:*:*:*:vmware_vsphere:*:* versions from (including) 7.2 *cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Aug. 14, 2019
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html [No Types Assigned] -
CVE Modified by [email protected]
Aug. 14, 2019
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html [No Types Assigned] -
CVE Modified by [email protected]
Aug. 13, 2019
Action Type Old Value New Value Added Reference https://www.debian.org/security/2019/dsa-4497 [No Types Assigned] Added Reference https://seclists.org/bugtraq/2019/Aug/18 [No Types Assigned] -
CVE Modified by [email protected]
Aug. 12, 2019
Action Type Old Value New Value Added Reference https://seclists.org/bugtraq/2019/Aug/13 [No Types Assigned] -
CVE Modified by [email protected]
Aug. 11, 2019
Action Type Old Value New Value Added Reference https://www.debian.org/security/2019/dsa-4495 [No Types Assigned] -
CVE Modified by [email protected]
Jul. 26, 2019
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4076-1/ [No Types Assigned] -
CVE Modified by [email protected]
Jul. 20, 2019
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html [No Types Assigned] -
CVE Modified by [email protected]
Jul. 19, 2019
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00014.html [No Types Assigned] -
CVE Modified by [email protected]
Jul. 19, 2019
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20190719-0003/ [No Types Assigned] -
CVE Modified by [email protected]
Jul. 12, 2019
Action Type Old Value New Value Added Reference https://support.f5.com/csp/article/K11225249 [No Types Assigned] -
CVE Modified by [email protected]
May. 08, 2019
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/108196 [No Types Assigned] -
Initial Analysis by [email protected]
May. 07, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:M/Au:N/C:C/I:C/A:C) Added CVSS V3 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/torvalds/linux/commit/b90cd6f2b905905fb42671009dc0e27c310a16ae No Types Assigned https://github.com/torvalds/linux/commit/b90cd6f2b905905fb42671009dc0e27c310a16ae Patch, Vendor Advisory Changed Reference Type https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b90cd6f2b905905fb42671009dc0e27c310a16ae No Types Assigned https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b90cd6f2b905905fb42671009dc0e27c310a16ae Patch, Vendor Advisory Added CWE CWE-416 Added CWE CWE-362 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.20
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-20836 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2018-20836
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.98 }} 0.07%
score
0.83898
percentile