CVE-2022-1055

Use after Free in tc_new_tfilter allowing for privilege escalation in Linux Kernel

HIGH 8.6

At a glance

Source
NVD
EPSS
EPSS 0.50 % · percentile 43 ()
State
PUBLISHED
Published
Updated
Assigner
Google
NVD status
Analyzed

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

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 4.0HIGH 8.6CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:NGoogle
CVSS 4.0HIGH 8.6CVSS: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:XNVD · cve-coordination@google.com (Secondary)
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)
CVSS 2.0MEDIUM 4.6AV:L/AC:L/Au:N/C:P/I:P/A:PNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Kernelaffected 5.1.0 < 5.4.177 ; affected 5.5.0 < 5.10.97 ; affected 5.11.0 < 5.15.20 ; affected 5.16.0 < 5.16.6 ; unaffected 5.17.0 ; unaffected 04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD