CVEvulnerability
CVE-2021-4028
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2022-08-24
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-416
Description
A flaw in the Linux kernel's implementation of RDMA communications manager listener code allowed an attacker with local access to setup a 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.
Affected configurations
• linux linux kernel (>= 5.10 < 5.10.71)
• linux linux kernel (>= 5.11 < 5.14.10)
• suse linux enterprise 15.0
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://access.redhat.com/security/cve/CVE-2021-4028 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2027201 Issue Tracking, Third Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1193167#c0 Issue Tracking, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bc0bdc5afaa74 Mailing List, Patch, Vendor Advisory
- https://lkml.org/lkml/2021/10/4/697 Mailing List, Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20221228-0002/ Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2021-4028 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2027201 Issue Tracking, Third Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1193167#c0 Issue Tracking, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bc0bdc5afaa74 Mailing List, Patch, Vendor Advisory
- https://lkml.org/lkml/2021/10/4/697 Mailing List, Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20221228-0002/ Third Party Advisory