CVE-2021-22600
Linux Kernel Privilege Escalation Vulnerability
7.0
HIGH
CVSS 3.1
⚠ KEVEPSS 0.18%
Description
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
How to fix CVE-2021-22600
To remediate CVE-2021-22600, upgrade the affected package to a fixed version below.
- —upgrade to 5.10.92-1 or later
Is CVE-2021-22600 being exploited?
Yes — CVE-2021-22600 is on the CISA Known Exploited Vulnerabilities (KEV) catalog. Patch immediately.
Affected packages (1)
- from 0, < 5.10.92-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |