CVE-2022-1462

Aliases:UBUNTU-CVE-2022-1462DEBIAN-CVE-2022-1462
Advisory lineage Upstream: 0 Downstream: 30
Modified
Published: 31 May 2022, 00:00
Last modified:03 Aug 2024, 00:03

Vulnerability Summary

Overall Risk (default)
medium
35/100
CVSS Score
6.3 MEDIUM
v3.1 (nvd)
EPSS Score
0.34% LOW
0% probability +0.30%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

31 May 2022, 00:00
Published
Vulnerability first disclosed
03 Aug 2024, 00:03
Last Modified
Vulnerability information updated

Description

An out-of-bounds read flaw was found in the Linux kernel’s TeleTYpe subsystem. The issue occurs in how a user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read unauthorized random data from memory.

CVSS Metrics

  • v4.0•HIGH•Score: 7.3CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  • v3.1•MEDIUM•Score: 6.3CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H
  • v2.0•LOW•Score: 3.3AV:L/AC:M/Au:N/C:P/I:N/A:P

EPSS Trends

Current EPSS score: 0.34%• Percentile: 27%

Techniques & Countermeasures

  • CWE-362•Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

    The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

Affected Systems

  • debian•linux

    < 5.10.136-1 | < 5.18.14-1 | < 5.18.14-1 | < 5.18.14-1

  • ubuntu•linux

    all | < 4.4.0-239.273 | < 4.15.0-197.208 | < 5.4.0-128.144 | < 5.15.0-50.56

  • ubuntu•linux-aws

    < 4.4.0-1117.123 | < 4.4.0-1155.170 | < 4.15.0-1143.155 | < 5.4.0-1086.93 | < 5.15.0-1021.25

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.13

    all

  • ubuntu•linux-aws-5.15

    < 5.15.0-1021.25~20.04.1

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1086.93~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-fips

    < 4.15.0-2082.88 | all | < 5.4.0-1086.93+fips1

  • ubuntu•linux-aws-hwe

    < 4.15.0-1143.155~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1157.172~14.04.2 | < 4.15.0-1159.174~16.04.1 | all | < 5.4.0-1094.100 | < 5.15.0-1021.26

  • ubuntu•linux-azure-4.15

    < 4.15.0-1157.172

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.13

    all

  • ubuntu•linux-azure-5.15

    < 5.15.0-1021.26~20.04.1

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1094.100~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    < 5.15.0-1024.30.1

  • ubuntu•linux-azure-fde-5.15

    < 5.15.0-1114.123~20.04.1

  • ubuntu•linux-azure-fips

    < 4.15.0-2066.72 | all | < 5.4.0-1094.100+fips1

  • ubuntu•linux-bluefield

    all | < 5.4.0-1047.52

  • ubuntu•linux-dell300x

    < 4.15.0-1055.60

  • ubuntu•linux-fips

    < 4.4.0-1088.95 | all | < 4.15.0-1100.111 | < 5.4.0-1062.70

  • ubuntu•linux-gcp

    < 4.15.0-1138.154~16.04.1 | all | < 5.4.0-1090.98 | < 5.15.0-1019.25

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1138.154

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.13

    all

  • ubuntu•linux-gcp-5.15

    < 5.15.0-1021.28~20.04.1

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1092.101~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-fips

    < 4.15.0-2047.52 | all | < 5.4.0-1092.101+fips1

  • ubuntu•linux-gke

    < 5.4.0-1084.90 | < 5.15.0-1017.20

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.15

    < 5.15.0-1019.23~20.04.1

  • ubuntu•linux-gke-5.4

    all

  • ubuntu•linux-gkeop

    < 5.4.0-1054.57 | < 5.15.0-1004.6

  • ubuntu•linux-gkeop-5.15

    < 5.15.0-1005.7~20.04.1

  • ubuntu•linux-gkeop-5.4

    all

  • ubuntu•linux-hwe

    < 4.15.0-197.208~16.04.1 | all

  • ubuntu•linux-hwe-5.11

    all

  • ubuntu•linux-hwe-5.13

    all

  • ubuntu•linux-hwe-5.15

    < 5.15.0-50.56~20.04.1

  • ubuntu•linux-hwe-5.4

    < 5.4.0-128.144~18.04.1

  • ubuntu•linux-hwe-5.8

    all

  • ubuntu•linux-hwe-edge

    all | all

Showing first 50 affected entries in server-rendered view.

References (11)