CVE-2021-3923
Summary
| CVE | CVE-2021-3923 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2023-03-27 21:15:00 UTC |
| Updated | 2023-11-07 03:38:00 UTC |
| Description | A flaw was found in the Linux kernel's implementation of RDMA over infiniband. An attacker with a privileged local account can leak kernel stack information when issuing commands to the /dev/infiniband/rdma_cm device node. While this access is unlikely to leak sensitive user information, it can be further used to defeat existing kernel protection mechanisms. |
Risk And Classification
Problem Types: NVD-CWE-noinfo
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Fedoraproject | Fedora | 37 | All | All | All |
| Operating System | Linux | Linux Kernel | All | All | All | All |
| Operating System | Redhat | Enterprise Linux | 6.0 | All | All | All |
| Operating System | Redhat | Enterprise Linux | 7.0 | All | All | All |
| Operating System | Redhat | Enterprise Linux | 8.0 | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| [PATCH v2] RDMA/ucma: RDMA/ucma: fix a kernel-infoleak in ucma_init_qp_attr() - Dan Carpenter | MISC | lore.kernel.org | |
| [PATCH v2] RDMA/ucma: RDMA/ucma: fix a kernel-infoleak in ucma_init_qp_attr() - Dan Carpenter | lore.kernel.org | ||
| Bug Access Denied | MISC | bugzilla.redhat.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 181718 Debian Security Update for linux (CVE-2021-3923)
- 378473 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX2-SA-2023:0021)
- 672935 EulerOS Security Update for kernel (EulerOS-SA-2023-1824)
- 672952 EulerOS Security Update for kernel (EulerOS-SA-2023-1806)
- 672981 EulerOS Security Update for kernel (EulerOS-SA-2023-1848)
- 673005 EulerOS Security Update for kernel (EulerOS-SA-2023-1873)
- 673074 EulerOS Security Update for kernel (EulerOS-SA-2023-2193)
- 673117 EulerOS Security Update for kernel (EulerOS-SA-2023-2152)
- 753901 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:1803-1)
- 753902 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:1800-1)
- 753903 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:1801-1)
- 753905 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:1811-1)
- 753914 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:1848-1)
- 754023 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:2232-1)
- 906824 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (25915-1)