CVE & CISA-KEV CatalogNVD
CVE-2022-33740
HIGH7.1
CVSS v3
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).
How to fix
Remediation Available
linuxDebian
Fixed in:5.10.127-2CVE-2022-33740
Fixed in:5.18.14-1CVE-2022-33740
Fixed in:5.18.14-1CVE-2022-33740
Fixed in:5.18.14-1CVE-2022-33740
linuxUbuntu
Fixed in:4.4.0-233.267USN-5579-1
Fixed in:4.15.0-194.205USN-5669-1
Fixed in:5.4.0-128.144USN-5668-1
Fixed in:5.15.0-48.54USN-5624-1
linux-awsUbuntu
Fixed in:4.4.0-1112.118USN-5572-2
Fixed in:4.4.0-1148.163USN-5572-1
Fixed in:4.15.0-1142.154USN-5678-1
Fixed in:5.4.0-1086.93USN-5668-1
Fixed in:5.15.0-1020.24USN-5624-1
linux-aws-5.15Ubuntu
Fixed in:5.15.0-1020.24~20.04.1USN-5624-1
linux-aws-5.4Ubuntu
Fixed in:5.4.0-1086.93~18.04.1USN-5682-1
linux-aws-hweUbuntu
Fixed in:4.15.0-1142.154~16.04.1USN-5679-1
linux-azureUbuntu
Fixed in:4.15.0-1153.168~14.04.1USN-5684-1
Fixed in:4.15.0-1153.168~16.04.1USN-5684-1
Fixed in:5.15.0-1020.25USN-5624-1
linux-azure-4.15Ubuntu
Fixed in:4.15.0-1153.168USN-5687-1
linux-azure-5.15Ubuntu
Fixed in:5.15.0-1020.25~20.04.1USN-5624-1
linux-azure-fdeUbuntu
Fixed in:5.4.0-1092.97+cvm1.1USN-5706-1
linux-bluefieldUbuntu
Fixed in:5.4.0-1047.52USN-5668-1
linux-dell300xUbuntu
Fixed in:4.15.0-1054.59USN-5669-1
linux-gcpUbuntu
Fixed in:4.15.0-1137.153~16.04.1USN-5695-1
Fixed in:5.4.0-1090.98USN-5677-1
Fixed in:5.15.0-1018.24USN-5633-1
linux-gcp-4.15Ubuntu
Fixed in:4.15.0-1137.153USN-5678-1
linux-gcp-5.15Ubuntu
Fixed in:5.15.0-1018.24~20.04.1USN-5644-1
linux-gkeUbuntu
Fixed in:5.4.0-1084.90USN-5668-1
Fixed in:5.15.0-1016.19USN-5633-1
linux-gke-5.15Ubuntu
Fixed in:5.15.0-1016.19~20.04.1USN-5648-1
linux-gkeopUbuntu
Fixed in:5.4.0-1054.57USN-5668-1
Fixed in:5.15.0-1003.5USN-5635-1
linux-hweUbuntu
Fixed in:4.15.0-194.205~16.04.1USN-5669-2
linux-hwe-5.15Ubuntu
Fixed in:5.15.0-48.54~20.04.1USN-5623-1
linux-hwe-5.4Ubuntu
Fixed in:5.4.0-128.144~18.04.1USN-5668-1
linux-ibmUbuntu
Fixed in:5.4.0-1034.38USN-5668-1
Fixed in:5.15.0-1015.17USN-5683-1
linux-ibm-5.4Ubuntu
Fixed in:5.4.0-1034.38~18.04.1USN-5668-1
linux-image-4.15.0-1054-dell300xUbuntu
Fixed in:4.15.0-1054.59USN-5669-1
linux-image-4.15.0-1107-oracleUbuntu
Fixed in:4.15.0-1107.118~16.04.1USN-5669-2
Fixed in:4.15.0-1107.118USN-5669-1
linux-image-4.15.0-1120-raspi2Ubuntu
Fixed in:4.15.0-1120.128USN-5669-1
linux-image-4.15.0-1128-kvmUbuntu
Fixed in:4.15.0-1128.133USN-5669-1
linux-image-4.15.0-1137-gcpUbuntu
Fixed in:4.15.0-1137.153~16.04.1USN-5695-1
Fixed in:4.15.0-1137.153USN-5678-1
linux-image-4.15.0-1138-snapdragonUbuntu
Fixed in:4.15.0-1138.148USN-5669-1
linux-image-4.15.0-1142-awsUbuntu
Fixed in:4.15.0-1142.154USN-5678-1
linux-image-4.15.0-1142-aws-hweUbuntu
Fixed in:4.15.0-1142.154~16.04.1USN-5679-1
linux-image-4.15.0-1153-azureUbuntu
Fixed in:4.15.0-1153.168~14.04.1USN-5684-1
Fixed in:4.15.0-1153.168~16.04.1USN-5684-1
Fixed in:4.15.0-1153.168USN-5687-1
linux-image-4.15.0-194-genericUbuntu
Fixed in:4.15.0-194.205~16.04.1USN-5669-2
Fixed in:4.15.0-194.205USN-5669-1
linux-image-4.15.0-194-generic-lpaeUbuntu
Fixed in:4.15.0-194.205USN-5669-1
linux-image-4.15.0-194-lowlatencyUbuntu
Fixed in:4.15.0-194.205~16.04.1USN-5669-2
Fixed in:4.15.0-194.205USN-5669-1
linux-image-4.4.0-1112-awsUbuntu
Fixed in:4.4.0-1112.118USN-5572-2
linux-image-4.4.0-1113-kvmUbuntu
Fixed in:4.4.0-1113.123USN-5579-1
linux-image-4.4.0-1148-awsUbuntu
Fixed in:4.4.0-1148.163USN-5572-1
linux-image-4.4.0-233-genericUbuntu
Fixed in:4.4.0-233.267~14.04.1USN-5579-1
Fixed in:4.4.0-233.267USN-5579-1
linux-image-4.4.0-233-lowlatencyUbuntu
Fixed in:4.4.0-233.267~14.04.1USN-5579-1
Fixed in:4.4.0-233.267USN-5579-1
linux-image-5.15.0-1003-gkeopUbuntu
Fixed in:5.15.0-1003.5USN-5635-1
linux-image-5.15.0-1015-ibmUbuntu
Fixed in:5.15.0-1015.17USN-5683-1
linux-image-5.15.0-1015-raspiUbuntu
Fixed in:5.15.0-1015.17USN-5633-1
linux-image-5.15.0-1015-raspi-nolpaeUbuntu
Fixed in:5.15.0-1015.17USN-5633-1
linux-image-5.15.0-1016-gkeUbuntu
Fixed in:5.15.0-1016.19~20.04.1USN-5648-1
Fixed in:5.15.0-1016.19USN-5633-1
linux-image-5.15.0-1016-intel-iotgUbuntu
Fixed in:5.15.0-1016.21USN-5655-1
linux-image-5.15.0-1018-gcpUbuntu
Fixed in:5.15.0-1018.24~20.04.1USN-5644-1
Fixed in:5.15.0-1018.24USN-5633-1
linux-image-5.15.0-1018-kvmUbuntu
Fixed in:5.15.0-1018.22USN-5624-1
linux-image-5.15.0-1018-oracleUbuntu
Fixed in:5.15.0-1018.23USN-5640-1
linux-image-5.15.0-1020-awsUbuntu
Fixed in:5.15.0-1020.24~20.04.1USN-5624-1
Fixed in:5.15.0-1020.24USN-5624-1
linux-image-5.15.0-1020-azureUbuntu
Fixed in:5.15.0-1020.25~20.04.1USN-5624-1
Fixed in:5.15.0-1020.25USN-5624-1
linux-image-5.15.0-48-genericUbuntu
Fixed in:5.15.0-48.54~20.04.1USN-5623-1
Fixed in:5.15.0-48.54USN-5624-1
linux-image-5.15.0-48-generic-64kUbuntu
Fixed in:5.15.0-48.54~20.04.1USN-5623-1
Fixed in:5.15.0-48.54USN-5624-1
linux-image-5.15.0-48-generic-lpaeUbuntu
Fixed in:5.15.0-48.54~20.04.1USN-5623-1
Fixed in:5.15.0-48.54USN-5624-1
linux-image-5.15.0-48-lowlatencyUbuntu
Fixed in:5.15.0-48.54~20.04.1USN-5623-1
Fixed in:5.15.0-48.54USN-5624-1
linux-image-5.15.0-48-lowlatency-64kUbuntu
Fixed in:5.15.0-48.54~20.04.1USN-5623-1
Fixed in:5.15.0-48.54USN-5624-1
linux-image-5.4.0-1034-ibmUbuntu
Fixed in:5.4.0-1034.38~18.04.1USN-5668-1
Fixed in:5.4.0-1034.38USN-5668-1
linux-image-5.4.0-1047-bluefieldUbuntu
Fixed in:5.4.0-1047.52USN-5668-1
linux-image-5.4.0-1054-gkeopUbuntu
Fixed in:5.4.0-1054.57USN-5668-1
linux-image-5.4.0-1071-raspiUbuntu
Fixed in:5.4.0-1071.81~18.04.1USN-5677-1
Fixed in:5.4.0-1071.81USN-5677-1
linux-image-5.4.0-1076-kvmUbuntu
Fixed in:5.4.0-1076.81USN-5668-1
linux-image-5.4.0-1084-gkeUbuntu
Fixed in:5.4.0-1084.90USN-5668-1
linux-image-5.4.0-1084-oracleUbuntu
Fixed in:5.4.0-1084.92~18.04.1USN-5677-1
Fixed in:5.4.0-1084.92USN-5668-1
linux-image-5.4.0-1086-awsUbuntu
Fixed in:5.4.0-1086.93~18.04.1USN-5682-1
Fixed in:5.4.0-1086.93USN-5668-1
linux-image-5.4.0-1090-gcpUbuntu
Fixed in:5.4.0-1090.98USN-5677-1
linux-image-5.4.0-1092-azure-fdeUbuntu
Fixed in:5.4.0-1092.97+cvm1.1USN-5706-1
linux-image-5.4.0-128-genericUbuntu
Fixed in:5.4.0-128.144~18.04.1USN-5668-1
Fixed in:5.4.0-128.144USN-5668-1
linux-image-5.4.0-128-generic-lpaeUbuntu
Fixed in:5.4.0-128.144~18.04.1USN-5668-1
Fixed in:5.4.0-128.144USN-5668-1
linux-image-5.4.0-128-lowlatencyUbuntu
Fixed in:5.4.0-128.144~18.04.1USN-5668-1
Fixed in:5.4.0-128.144USN-5668-1
linux-image-awsUbuntu
Fixed in:4.4.0.1112.109USN-5572-2
Fixed in:4.4.0.1148.152USN-5572-1
Fixed in:5.4.0.1086.66USN-5682-1
Fixed in:5.15.0.1020.24~20.04.12USN-5624-1
Fixed in:5.15.0.1020.20USN-5624-1
linux-image-aws-hweUbuntu
Fixed in:4.15.0.1142.129USN-5679-1
linux-image-aws-lts-18.04Ubuntu
Fixed in:4.15.0.1142.142USN-5678-1
linux-image-aws-lts-20.04Ubuntu
Fixed in:5.4.0.1086.86USN-5668-1
linux-image-azureUbuntu
Fixed in:4.15.0.1153.122USN-5684-1
Fixed in:4.15.0.1153.140USN-5684-1
Fixed in:5.15.0.1020.25~20.04.13USN-5624-1
Fixed in:5.15.0.1020.19USN-5624-1
linux-image-azure-fdeUbuntu
Fixed in:5.4.0.1092.97+cvm1.32USN-5706-1
linux-image-azure-lts-18.04Ubuntu
Fixed in:4.15.0.1153.123USN-5687-1
linux-image-bluefieldUbuntu
Fixed in:5.4.0.1047.46USN-5668-1
linux-image-dell300xUbuntu
Fixed in:4.15.0.1054.54USN-5669-1
linux-image-gcpUbuntu
Fixed in:4.15.0.1137.131USN-5695-1
Fixed in:5.15.0.1018.24~20.04.1USN-5644-1
Fixed in:5.15.0.1018.16USN-5633-1
linux-image-gcp-lts-18.04Ubuntu
Fixed in:4.15.0.1137.153USN-5678-1
linux-image-gcp-lts-20.04Ubuntu
Fixed in:5.4.0.1090.95USN-5677-1
linux-image-genericUbuntu
Fixed in:4.4.0.233.239USN-5579-1
Fixed in:4.15.0.194.179USN-5669-1
Fixed in:5.4.0.128.129USN-5668-1
Fixed in:5.15.0.48.48USN-5624-1
linux-image-generic-64kUbuntu
Fixed in:5.15.0.48.48USN-5624-1
linux-image-generic-64k-hwe-20.04Ubuntu
Fixed in:5.15.0.48.54~20.04.18USN-5623-1
linux-image-generic-64k-hwe-22.04Ubuntu
Fixed in:5.15.0.48.48USN-5624-1
linux-image-generic-hwe-16.04Ubuntu
Fixed in:4.15.0.194.181USN-5669-2
linux-image-generic-hwe-18.04Ubuntu
Fixed in:5.4.0.128.144~18.04.107USN-5668-1
linux-image-generic-hwe-20.04Ubuntu
Fixed in:5.15.0.48.54~20.04.18USN-5623-1
linux-image-generic-hwe-22.04Ubuntu
Fixed in:5.15.0.48.48USN-5624-1
linux-image-generic-lpaeUbuntu
linux-image-generic-lpae-hwe-18.04Ubuntu
Fixed in:5.4.0.128.144~18.04.107USN-5668-1
linux-image-generic-lpae-hwe-20.04Ubuntu
Fixed in:5.15.0.48.54~20.04.18USN-5623-1
linux-image-generic-lpae-hwe-22.04Ubuntu
Fixed in:5.15.0.48.48USN-5624-1
linux-image-generic-lts-xenialUbuntu
Fixed in:4.4.0.233.202USN-5579-1
linux-image-gkeUbuntu
linux-image-gke-5.15Ubuntu
Fixed in:5.15.0.1016.19~20.04.1USN-5648-1
Fixed in:5.15.0.1016.18USN-5633-1
linux-image-gke-5.4Ubuntu
Fixed in:5.4.0.1084.92USN-5668-1
linux-image-gkeopUbuntu
Fixed in:5.4.0.1054.55USN-5668-1
Fixed in:5.15.0.1003.5USN-5635-1
linux-image-gkeop-5.15Ubuntu
Fixed in:5.15.0.1003.5USN-5635-1
linux-image-gkeop-5.4Ubuntu
Fixed in:5.4.0.1054.55USN-5668-1
linux-image-ibmUbuntu
linux-image-ibm-lts-20.04Ubuntu
Fixed in:5.4.0.1034.63USN-5668-1
linux-image-intel-iotgUbuntu
Fixed in:5.15.0.1016.17USN-5655-1
linux-image-kvmUbuntu
Fixed in:4.4.0.1113.110USN-5579-1
Fixed in:4.15.0.1128.121USN-5669-1
Fixed in:5.4.0.1076.73USN-5668-1
Fixed in:5.15.0.1018.16USN-5624-1
linux-image-lowlatencyUbuntu
Fixed in:4.4.0.233.239USN-5579-1
Fixed in:4.15.0.194.179USN-5669-1
Fixed in:5.4.0.128.129USN-5668-1
Fixed in:5.15.0.48.45USN-5624-1
linux-image-lowlatency-64kUbuntu
Fixed in:5.15.0.48.45USN-5624-1
linux-image-lowlatency-64k-hwe-20.04Ubuntu
Fixed in:5.15.0.48.54~20.04.16USN-5623-1
linux-image-lowlatency-64k-hwe-22.04Ubuntu
Fixed in:5.15.0.48.45USN-5624-1
linux-image-lowlatency-hwe-16.04Ubuntu
Fixed in:4.15.0.194.181USN-5669-2
linux-image-lowlatency-hwe-18.04Ubuntu
Fixed in:5.4.0.128.144~18.04.107USN-5668-1
linux-image-lowlatency-hwe-20.04Ubuntu
Fixed in:5.15.0.48.54~20.04.16USN-5623-1
linux-image-lowlatency-hwe-22.04Ubuntu
Fixed in:5.15.0.48.45USN-5624-1
linux-image-lowlatency-lts-xenialUbuntu
Fixed in:4.4.0.233.202USN-5579-1
linux-image-oemUbuntu
Fixed in:4.15.0.194.181USN-5669-2
Fixed in:5.4.0.128.144~18.04.107USN-5668-1
Fixed in:5.4.0.128.129USN-5668-1
linux-image-oem-20.04Ubuntu
Fixed in:5.15.0.48.48USN-5624-1
linux-image-oem-osp1Ubuntu
Fixed in:5.4.0.128.144~18.04.107USN-5668-1
Fixed in:5.4.0.128.129USN-5668-1
linux-image-oracleUbuntu
Fixed in:4.15.0.1107.91USN-5669-2
Fixed in:5.4.0.1084.92~18.04.61USN-5677-1
Fixed in:5.15.0.1018.16USN-5640-1
linux-image-oracle-lts-18.04Ubuntu
Fixed in:4.15.0.1107.114USN-5669-1
linux-image-oracle-lts-20.04Ubuntu
Fixed in:5.4.0.1084.81USN-5668-1
linux-image-raspiUbuntu
Fixed in:5.4.0.1071.104USN-5677-1
Fixed in:5.15.0.1015.14USN-5633-1
linux-image-raspi-hwe-18.04Ubuntu
Fixed in:5.4.0.1071.71USN-5677-1
linux-image-raspi-nolpaeUbuntu
Fixed in:5.15.0.1015.14USN-5633-1
linux-image-raspi2Ubuntu
Fixed in:4.15.0.1120.117USN-5669-1
Fixed in:5.4.0.1071.104USN-5677-1
linux-image-snapdragonUbuntu
Fixed in:4.15.0.1138.139USN-5669-1
linux-image-snapdragon-hwe-18.04Ubuntu
Fixed in:5.4.0.128.144~18.04.107USN-5668-1
linux-image-virtualUbuntu
Fixed in:4.4.0.233.239USN-5579-1
Fixed in:4.15.0.194.179USN-5669-1
Fixed in:5.4.0.128.129USN-5668-1
Fixed in:5.15.0.48.48USN-5624-1
linux-image-virtual-hwe-16.04Ubuntu
Fixed in:4.15.0.194.181USN-5669-2
linux-image-virtual-hwe-18.04Ubuntu
Fixed in:5.4.0.128.144~18.04.107USN-5668-1
linux-image-virtual-hwe-20.04Ubuntu
Fixed in:5.15.0.48.54~20.04.18USN-5623-1
linux-image-virtual-hwe-22.04Ubuntu
Fixed in:5.15.0.48.48USN-5624-1
linux-image-virtual-lts-xenialUbuntu
Fixed in:4.4.0.233.202USN-5579-1
linux-intel-iotgUbuntu
Fixed in:5.15.0-1016.21USN-5655-1
linux-kvmUbuntu
Fixed in:4.4.0-1113.123USN-5579-1
Fixed in:4.15.0-1128.133USN-5669-1
Fixed in:5.4.0-1076.81USN-5668-1
Fixed in:5.15.0-1018.22USN-5624-1
linux-lowlatencyUbuntu
Fixed in:5.15.0-48.54USN-5624-1
linux-lowlatency-hwe-5.15Ubuntu
Fixed in:5.15.0-48.54~20.04.1USN-5623-1
linux-lts-xenialUbuntu
Fixed in:4.4.0-233.267~14.04.1USN-5579-1
linux-oracleUbuntu
Fixed in:4.15.0-1107.118~16.04.1USN-5669-2
Fixed in:4.15.0-1107.118USN-5669-1
Fixed in:5.4.0-1084.92USN-5668-1
Fixed in:5.15.0-1018.23USN-5640-1
linux-oracle-5.4Ubuntu
Fixed in:5.4.0-1084.92~18.04.1USN-5677-1
linux-raspiUbuntu
Fixed in:5.4.0-1071.81USN-5677-1
Fixed in:5.15.0-1015.17USN-5633-1
linux-raspi-5.4Ubuntu
Fixed in:5.4.0-1071.81~18.04.1USN-5677-1
linux-raspi2Ubuntu
Fixed in:4.15.0-1120.128USN-5669-1
linux-snapdragonUbuntu
Fixed in:4.15.0-1138.148USN-5669-1
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Exploit Intelligence
0.32%probability of exploitation in 30 days
25thpercentile
Low risk: more likely to be exploited than 25% of all known CVEs.
References
Vendor Advisory1
Third-Party Advisory2
Other references2
Related Vulnerabilities
Other CWE-212 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2020-1940 | High | 7.5 | 4.5% | - | - |
| CVE-2022-29900 | Medium | 6.5 | 3.8% | - | Fix |
| CVE-2002-0704 | High | 7.5 | 3.2% | - | - |
| CVE-2020-15094 | High | 8.0 | 3.0% | - | Fix |
| CVE-2022-23633 | High | 7.4 | 2.2% | - | Fix |
| CVE-2019-19362 | Medium | 6.5 | 2.1% | - | - |
Common questions
How do I fix CVE-2022-33740?
Published advisories record a fix for 142 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.
Is CVE-2022-33740 being actively exploited?
Not that we know of. CVE-2022-33740 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.32% is the estimated probability that it will be exploited in the next 30 days. That is higher than 25% of all scored CVEs.
How severe is CVE-2022-33740?
CVE-2022-33740 has a CVSS v3 base score of 7.1, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2022-33740 affect?
Published advisories record a fix for linux (Debian), linux (Ubuntu), linux-aws (Ubuntu), linux-aws-5.15 (Ubuntu), and 138 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
Embed a live status badge for CVE-2022-33740
Markdown
[](https://tridentstack.com/cve/CVE-2022-33740)HTML
<a href="https://tridentstack.com/cve/CVE-2022-33740"><img src="https://tridentstack.com/cve/badge/CVE-2022-33740.svg" alt="CVE-2022-33740"></a>Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.