VDB
DEBIAN-CVE-2021-22600
DEBIAN-CVE-2021-22600
PUBLISHED
CVSS 7 HIGH
A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755
Risk Scores
CVSS 3.1
7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:11 | linux | *, *, 5.10.84-1 |
| Debian:14 | linux | 0, 0, 0 |
| Debian:13 | linux | 0, 0, 0 |
| Debian:12 | linux | 0, 0, 0 |
Exploit Intelligence
- Proof-Of-Concept to check privileges of af_packet.c for validating the privileges acquired by any hacker upon successful exploitation of CVE-2021-22600 (github-poc-repo)
- Proof-Of-Concept to check privileges of af_packet.c for validating the privileges acquired by any hacker upon successful exploitation of CVE-2021-22600 (github-poc)
- sendINUX/CVE-2021-22600__DirtyPagetable (github-poc)
- kev.json (github-poc)
- data.js (github-poc)
Timeline
- Jan 26, 2022 CVE Published
- Apr 28, 2026 CVE Updated