CVE-2018-20836
8.1
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 2.2 / Impact: 5.9
Source: NVD
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.
Affected (22)
Show all products
Linux: Linux Kernel · Canonical: Ubuntu Linux · Debian: Debian Linux · F5: Traffix Signaling Delivery Controller · Netapp: Active Iq Unified Manager, Hci Compute Node, 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 · Opensuse: Leap
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| Before 3.16.72 |
Configuration B
| Vulnerable Software | Affected Versions |
|---|---|
| Version 16.04 |
Configuration C
| Vulnerable Software | Affected Versions |
|---|---|
| Version 10.0 |
Configuration D
| Vulnerable Software | Affected Versions |
|---|---|
| Version 5.0.0 |
Configuration E
| Vulnerable Software | Affected Versions |
|---|---|
| From 9.5 | |
| All versions | |
| All versions | |
| All versions | |
| All versions | |
| All versions | |
| From 7.2 | |
| From 7.2 |
Related CWEs
CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.
CWE-416
Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
References (28)
Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: cve@mitre.org
PatchVendor Advisory
Source: cve@mitre.org
PatchVendor Advisory
Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Timeline
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