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7.8highHigh

CVE-2022-1055

Linux Linux Kernel

A use-after-free exists in the Linux Kernel in tc_new_tfilter that could allow a local attacker to gain privilege escalation. The exploit requires unprivileged user namespaces. We recommend upgrading past commit 04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5

Exploitation status

  • Published references include exploit or proof-of-concept material. There is no confirmation it is being used in real attacks.
  • A vendor advisory or patch reference has been published.

What the metrics mean

  • It is requires local access to the machine.
  • For an attacker who can reach it, no special conditions are needed to exploit it.
  • To exploit it, an ordinary user account is needed.
  • Beyond that, no action by a user is required.

Scoring

CVSS
7.8 (v3.1)
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4
8.6
Weakness
CWE-416
Assigned by
cve-coordination@google.com

Dates

Published
2022-03-29
Last modified
2026-08-13
Sources
NVD

Affected products

  • Linux Linux Kernel5.1 - 5.4.177, 5.5 - 5.10.97, 5.11 - 5.15.20, 5.16 - 5.16.6
  • Redhat Enterprise Linux8.0
  • Fedoraproject Fedora35
  • Canonical Ubuntu Linux16.04, 18.04, 20.04, 21.10, 22.04
  • Netapp H300s Firmwareall versions
  • Netapp H300sall versions
  • Netapp H500s Firmwareall versions
  • Netapp H500sall versions
  • Netapp H700s Firmwareall versions
  • Netapp H700sall versions
  • Netapp H300e Firmwareall versions
  • Netapp H300eall versions

As listed in the NVD configuration data. Not a statement about your estate.

References