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Status published
High
CVE-2018-20836
An issue was discovered in the Linux kernel before 4.20....
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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://seclists.org/bugtraq/2019/Aug/18
- https://www.debian.org/security/2019/dsa-4497
- https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html
- https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html
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Affected Vendor
linux
View all reports →Affected Software
linux kernel, ubuntu linux, debian linux, traffix signaling delivery controller, active iq unified manager, snapprotect, solidfire \& hci management node, solidfire \& hci storage node, storage replication adapter for clustered data ontap, vasa provider for clustered data ontap, virtual storage console, hci compute node, leap
Vulnerable Versions:
0, 3.17, 3.19, 4.5, 4.10, 4.15, 16.04, 8.0, 9.0, 10.0, 5.0.0, 5.1.0, 9.5, 7.2, 15.0, 15.1
Timeline
Official Publish:
May 7th, 2019
Last Modified:
August 5th, 2024
Added to House:
July 20th, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.