CVE-2022-33742

Aliases:UBUNTU-CVE-2022-33742DEBIAN-CVE-2022-33742ALPINE-CVE-2022-33742
Advisory lineage Upstream: 0 Downstream: 46
Modified
Published: 05 Jul 2022, 12:50
Last modified:03 Aug 2024, 08:09

Vulnerability Summary

Overall Risk (default)
medium
28/100
CVSS Score
7.1 HIGH
v3.1 (nvd)
EPSS Score
0.33% LOW
0% probability +0.30%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

05 Jul 2022, 12:50
Published
Vulnerability first disclosed
03 Aug 2024, 08:09
Last Modified
Vulnerability information updated

Description

Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742).

CVSS Metrics

  • v3.1•HIGH•Score: 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
  • v2.0•LOW•Score: 3.6AV:L/AC:L/Au:N/C:P/I:N/A:P

EPSS Trends

Current EPSS score: 0.33%• Percentile: 26%

Techniques & Countermeasures

  • CWE-200•Exposure of Sensitive Information to an Unauthorized Actor

    The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Affected Systems

  • alpine•xen

    < 4.14.5-r3 | < 4.15.3-r0 | < 4.15.3-r0 | < 4.16.1-r3 | < 4.16.1-r4 | < 4.16.1-r4 | < 4.16.1-r4 | < 4.16.1-r4 | < 4.16.1-r4 | < 4.16.1-r4 | < 4.16.1-r4 | < 4.16.1-r4

  • debian•linux

    < 5.10.127-2 | < 5.18.14-1 | < 5.18.14-1 | < 5.18.14-1

  • debian•xen

    all | < 4.16.2-1 | < 4.16.2-1 | < 4.16.2-1

  • ubuntu•linux

    all | < 4.15.0-194.205 | < 5.4.0-128.144 | < 5.15.0-48.54

  • ubuntu•linux-aws

    all | < 4.15.0-1142.154 | < 5.4.0-1086.93 | < 5.15.0-1020.24

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.13

    all

  • ubuntu•linux-aws-5.15

    < 5.15.0-1020.24~20.04.1

  • 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

    < 4.15.0-2081.87 | all | < 5.4.0-1086.93+fips1

  • ubuntu•linux-aws-hwe

    < 4.15.0-1142.154~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1153.168~14.04.1 | < 4.15.0-1153.168~16.04.1 | all | < 5.4.0-1094.100 | < 5.15.0-1020.25

  • ubuntu•linux-azure-4.15

    < 4.15.0-1153.168

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.13

    all

  • ubuntu•linux-azure-5.15

    < 5.15.0-1020.25~20.04.1

  • 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

    < 4.15.0-2062.68 | all | < 5.4.0-1094.100+fips1

  • ubuntu•linux-bluefield

    all | < 5.4.0-1047.52

  • ubuntu•linux-dell300x

    < 4.15.0-1054.59

  • ubuntu•linux-fips

    all | < 4.15.0-1099.110 | < 5.4.0-1062.70

  • ubuntu•linux-gcp

    < 4.15.0-1137.153~16.04.1 | all | < 5.4.0-1090.98 | < 5.15.0-1018.24

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1137.153

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.13

    all

  • ubuntu•linux-gcp-5.15

    < 5.15.0-1018.24~20.04.1

  • 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 | < 5.15.0-1016.19

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.15

    < 5.15.0-1016.19~20.04.1

  • ubuntu•linux-gke-5.4

    all

  • ubuntu•linux-gkeop

    < 5.4.0-1054.57 | < 5.15.0-1003.5

  • ubuntu•linux-gkeop-5.4

    all

  • ubuntu•linux-hwe

    < 4.15.0-194.205~16.04.1 | all

  • ubuntu•linux-hwe-5.11

    all

  • ubuntu•linux-hwe-5.13

    all

  • ubuntu•linux-hwe-5.15

    < 5.15.0-48.54~20.04.1

  • ubuntu•linux-hwe-5.4

    < 5.4.0-128.144~18.04.1

  • ubuntu•linux-hwe-5.8

    all

Showing first 50 affected entries in server-rendered view.

References (32)