CVE-2022-1055

Name: CVE-2022-1055
Creator: NVD / NIST
Published: 2022-03-29T15:15:08.207+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.6/10EPSS 0.50%

Last modified Jun 17, 2026

CVE-2022-1055 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. 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. EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

8.6/10

CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.50%

39.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	>= 5.1, < 5.17
Linux	Linux Kernel	5.17
Redhat	Enterprise Linux	8.0
Fedoraproject	Fedora	35
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	20.04
Canonical	Ubuntu Linux	21.10
Canonical	Ubuntu Linux	22.04
Netapp	H300s Firmware	All versions
Netapp	H500s Firmware	All versions
Netapp	H700s Firmware	All versions
Netapp	H300e Firmware	All versions
Netapp	H500e Firmware	All versions
Netapp	H700e Firmware	All versions
Netapp	H410s Firmware	All versions
Netapp	H410c Firmware	All versions

References

http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.htmlThird Party Advisory, VDB Entry
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5Patch, Vendor Advisory
https://kernel.dance/#04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5Exploit, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20220506-0007/Third Party Advisory
https://syzkaller.appspot.com/bug?id=2212474c958978ab86525fe6832ac8102c309ffcExploit, Patch, Third Party Advisory
http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.htmlThird Party Advisory, VDB Entry
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5Patch, Vendor Advisory
https://kernel.dance/#04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5Exploit, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20220506-0007/Third Party Advisory
https://syzkaller.appspot.com/bug?id=2212474c958978ab86525fe6832ac8102c309ffcExploit, Patch, Third Party Advisory

Timeline

Published: Mar 29, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-1055?

How severe is CVE-2022-1055?

CVE-2022-1055 has a CVSS score of 8.6/10 (HIGH severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.

How do I fix CVE-2022-1055?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-1055?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST