Executive Summary

Informations
Name CVE-2018-20836 First vendor Publication 2019-05-07
Vendor Cve Last vendor Modification 2022-11-03

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 8.1
Base Score 8.1 Environmental Score 8.1
impact SubScore 5.9 Temporal Score 8.1
Exploitabality Sub Score 2.2
 
Attack Vector Network Attack Complexity High
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:C/I:C/A:C)
Cvss Base Score 9.3 Attack Range Network
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20836

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-416 Use After Free
50 % CWE-362 Race Condition

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 2
Application 1
Application 1
Application 1
Application 1
Application 1
Application 1
Application 1
Application 1
Hardware 1
Os 1
Os 3
Os 3224
Os 2

Sources (Detail)

Source Url
BID http://www.securityfocus.com/bid/108196
BUGTRAQ https://seclists.org/bugtraq/2019/Aug/13
https://seclists.org/bugtraq/2019/Aug/18
CONFIRM https://security.netapp.com/advisory/ntap-20190719-0003/
https://support.f5.com/csp/article/K11225249
DEBIAN https://www.debian.org/security/2019/dsa-4495
https://www.debian.org/security/2019/dsa-4497
MISC https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b9...
https://github.com/torvalds/linux/commit/b90cd6f2b905905fb42671009dc0e27c310a...
MLIST https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html
https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html
SUSE http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00014.html
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html
UBUNTU https://usn.ubuntu.com/4076-1/

Alert History

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2019-05-08 00:18:54
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2019-05-07 21:18:56
  • First insertion