CVE-2021-4083
Severity CVSS v4.0:
Pending analysis
Type:
CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Publication date:
18/01/2022
Last modified:
06/10/2023
Description
A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on the system. This flaw affects Linux kernel versions prior to 5.16-rc4.
Impact
Base Score 3.x
7.00
Severity 3.x
HIGH
Base Score 2.0
6.90
Severity 2.0
MEDIUM
Vulnerable products and versions
CPE | From | Up to |
---|---|---|
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.4.294 (excluding) | |
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.5 (including) | 4.9.292 (excluding) |
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.10 (including) | 4.14.257 (excluding) |
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.15 (including) | 4.19.220 (excluding) |
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.20 (including) | 5.4.164 (excluding) |
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.5.0 (including) | 5.10.84 (excluding) |
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.11 (including) | 5.15.7 (excluding) |
cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:* | ||
cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:* | ||
cpe:2.3:o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:* | ||
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* | ||
cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* | ||
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* | ||
cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* | ||
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page
References to Advisories, Solutions, and Tools
- https://bugzilla.redhat.com/show_bug.cgi?id=2029923
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=054aa8d439b9
- https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
- https://security.netapp.com/advisory/ntap-20220217-0005/
- https://www.debian.org/security/2022/dsa-5096
- https://www.oracle.com/security-alerts/cpujul2022.html