• Tenable
  • CVEs
  • Settings
    Links
    Tenable.io Tenable Community & Support Tenable University
    Severity
    Theme
  • Tenable
  • Links
  • Tenable.io
  • Tenable Community & Support
  • Tenable University
  • Settings
  • Severity
  • Theme
  • Newest
  • Updated
  • Search
  • Newest
  • Updated
  • Search
  1. CVEs
  2. CVE-2018-20836
  1. CVEs

CVE-2018-20836

high
  • Information
  • CPEs
  • Plugins

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

https://github.com/torvalds/linux/commit/b90cd6f2b905905fb42671009dc0e27c310a16ae

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b90cd6f2b905905fb42671009dc0e27c310a16ae

http://www.securityfocus.com/bid/108196

https://support.f5.com/csp/article/K11225249

https://security.netapp.com/advisory/ntap-20190719-0003/

http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00014.html

http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html

https://usn.ubuntu.com/4076-1/

https://www.debian.org/security/2019/dsa-4495

https://seclists.org/bugtraq/2019/Aug/13

https://www.debian.org/security/2019/dsa-4497

https://seclists.org/bugtraq/2019/Aug/18

https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html

https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html

Details

Source: MITRE

Published: 2019-05-07

Updated: 2022-11-03

Type: CWE-362

Risk Information

CVSS v2

Base Score: 9.3

Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 8.6

Severity: HIGH

CVSS v3

Base Score: 8.1

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 2.2

Severity: HIGH

  • Tenable.com
  • Community & Support
  • Documentation
  • Education
  • © 2023 Tenable®, Inc. All Rights Reserved
  • Privacy Policy
  • Legal
  • 508 Compliance