VDB
DEBIAN-CVE-2021-4159
DEBIAN-CVE-2021-4159
PUBLISHED
CVSS 4.400000095367432 MEDIUM
Record from OSV · Published August 24, 2022
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.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| linux | Debian:14 | 5.7.6-1 |
| linux | Debian:12 | 5.7.6-1 |
| linux | Debian:13 | 5.7.6-1 |
Risk scores
CVSS 3.1
4.400000095367432
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | linux | 0 |
| Debian:12 | linux | 0 |
| Debian:13 | linux | 0 |
Timeline
- Aug 24, 2022 CVE Published
- Oct 23, 2026 CVE Updated
Query this with the API
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