7
CVE-2021-3640
- EPSS 0%
- Published 03.03.2022 23:15:08
- Last modified 21.11.2024 06:22:03
- Source secalert@redhat.com
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A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system.
Data is provided by the National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 4.4.293
Linux ≫ Linux Kernel Version >= 4.5 < 4.9.291
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.256
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.218
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.160
Linux ≫ Linux Kernel Version >= 5.5.0 < 5.10.80
Linux ≫ Linux Kernel Version >= 5.11 < 5.14.19
Linux ≫ Linux Kernel Version >= 5.15 < 5.15.3
Debian ≫ Debian Linux Version9.0
Fedoraproject ≫ Fedora Version34
Canonical ≫ Ubuntu Linux Version14.04 SwEditionesm
Canonical ≫ Ubuntu Linux Version16.04 SwEditionesm
Canonical ≫ Ubuntu Linux Version18.04 SwEditionlts
Canonical ≫ Ubuntu Linux Version20.04 SwEditionlts
Canonical ≫ Ubuntu Linux Version21.10
Netapp ≫ H300s Firmware Version-
Netapp ≫ H700s Firmware Version-
Netapp ≫ H300e Firmware Version-
Netapp ≫ H500e Firmware Version-
Netapp ≫ H700e Firmware Version-
Netapp ≫ H410s Firmware Version-
Netapp ≫ H410c Firmware Version-
Netapp ≫ H500s Firmware Version-
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
| Type | Source | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0% | 0.001 |
| Source | Base Score | Exploit Score | Impact Score | Vector string |
|---|---|---|---|---|
| nvd@nist.gov | 7 | 1 | 5.9 |
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
|
| nvd@nist.gov | 6.9 | 3.4 | 10 |
AV:L/AC:M/Au:N/C:C/I:C/A:C
|
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
The product contains a concurrent code sequence that 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 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.