vulnerability
Arch Linux: Privilege escalation (CVE-2021-4028)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:S/C:C/I:C/A:C) | Aug 24, 2022 | Jul 11, 2025 | Feb 10, 2026 |
Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
Aug 24, 2022
Added
Jul 11, 2025
Modified
Feb 10, 2026
Description
A security issue in the Linux kernel's implementation of RDMA communications manager listener code allowed an attacker with local access to setup socket to listen on a high port allowing for a list element to be used after free. Given the ability to execute code a local attacker could leverage this use-after-free to crash the system or possibly escalate privileges on the system.
Solution
arch-linux-upgrade-latest
References
- CVE-2021-4028
- https://attackerkb.com/topics/CVE-2021-4028
- URL-https://access.redhat.com/security/cve/CVE-2021-4028
- URL-https://bugzilla.redhat.com/show_bug.cgi?id=2027201
- URL-https://bugzilla.suse.com/show_bug.cgi?id=1193167#c0
- URL-https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bc0bdc5afaa74
- URL-https://lkml.org/lkml/2021/10/4/697
- URL-https://security.netapp.com/advisory/ntap-20221228-0002/
- CWE-416
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