UBUNTU-CVE-2022-0185

Advisory lineage Upstream: 1 Downstream: 3
Upstream
CVE-2022-0185
Published: 18 Jan 2022, 00:00
Last modified:03 Jun 2026, 13:34

Vulnerability Summary

Overall Risk (default)
medium
34/100
CVSS Score
8.4 HIGH
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

18 Jan 2022, 00:00
Published
Vulnerability first disclosed
03 Jun 2026, 13:34
Last Modified
Vulnerability information updated

Description

A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to legacy handling) could use this flaw to escalate their privileges on the system.

CVSS Metrics

  • v3.1•HIGH•Score: 8.4CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Systems

  • ubuntu•linux

    < 5.4.0-96.109

  • ubuntu•linux-aws

    < 5.4.0-1063.66

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    < 5.11.0-1027.30~20.04.1

  • ubuntu•linux-aws-5.13

    < 5.13.0-1011.12~20.04.1

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1063.66~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-fips

    < 5.4.0-1069.73+fips2 | all

  • ubuntu•linux-azure

    all | < 5.4.0-1067.70

  • ubuntu•linux-azure-5.11

    < 5.11.0-1027.30~20.04.1

  • ubuntu•linux-azure-5.13

    < 5.13.0-1012.14~20.04.1

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1067.70~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fips

    < 5.4.0-1073.76+fips1 | all

  • ubuntu•linux-bluefield

    < 5.4.0-1025.28 | all

  • ubuntu•linux-fips

    < 5.4.0-1040.46 | all

  • ubuntu•linux-gcp

    all | < 5.4.0-1062.66

  • ubuntu•linux-gcp-5.11

    < 5.11.0-1028.32~20.04.1

  • ubuntu•linux-gcp-5.13

    < 5.13.0-1012.15~20.04.1

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1062.66~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-fips

    < 5.4.0-1067.71~20.04.1 | all

  • ubuntu•linux-gke

    < 5.4.0-1059.62

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.4

    < 5.4.0-1059.62~18.04.1

  • ubuntu•linux-gkeop

    < 5.4.0-1031.32

  • ubuntu•linux-gkeop-5.4

    < 5.4.0-1031.32~18.04.1

  • ubuntu•linux-hwe

    all

  • ubuntu•linux-hwe-5.11

    all

  • ubuntu•linux-hwe-5.13

    < 5.13.0-27.29~20.04.1

  • ubuntu•linux-hwe-5.4

    < 5.4.0-96.109~18.04.1

  • ubuntu•linux-hwe-5.8

    all

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-ibm

    < 5.4.0-1012.13

  • ubuntu•linux-ibm-5.4

    < 5.4.0-1012.13~18.04.1

  • ubuntu•linux-intel-5.13

    < 5.13.0-1010.10

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 5.4.0-1053.55

  • ubuntu•linux-nvidia

    all

  • ubuntu•linux-oem

    all

  • ubuntu•linux-oem-5.10

    < 5.10.0-1057.61

  • ubuntu•linux-oem-5.13

    < 5.13.0-1028.35

  • ubuntu•linux-oem-5.14

    < 5.14.0-1020.22

  • ubuntu•linux-oem-5.6

    all

  • ubuntu•linux-oracle

    < 5.4.0-1061.65

  • ubuntu•linux-oracle-5.0

    all

Showing first 50 affected entries in server-rendered view.

References (7)