A vulnerability was found in the Linux kernel's EBPF verifier when handling internal data structures. Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit mitigations in place for the kernel.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-3131-1 | linux security update |
EUVD |
EUVD-2021-34027 | A vulnerability was found in the Linux kernel's EBPF verifier when handling internal data structures. Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit mitigations in place for the kernel. |
Ubuntu USN |
USN-5668-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-5677-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-5682-1 | Linux kernel (AWS) vulnerabilities |
Ubuntu USN |
USN-5706-1 | Linux kernel (Azure CVM) vulnerabilities |
Ubuntu USN |
USN-5790-1 | Linux kernel vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-03T17:16:04.247Z
Reserved: 2021-12-23T00:00:00
Link: CVE-2021-4159
No data.
Status : Modified
Published: 2022-08-24T16:15:09.713
Modified: 2024-11-21T06:37:02.127
Link: CVE-2021-4159
OpenCVE Enrichment
No data.
Debian DLA
EUVD
Ubuntu USN