Is CVE-2022-33740 in the CISA KEV catalog?

No. CVE-2022-33740 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-33740?

CVE-2022-33740 has a CVSS v3 base score of 7.1 (HIGH).

What is the EPSS score for CVE-2022-33740?

CVE-2022-33740 has an EPSS score of 0.32% (24th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-33740?

Upgrade linux on debian 11 to 5.10.127-2 or later. Fixes are available for 142 affected products.

CVE & CISA-KEV Catalog

CVE-2022-33740

HIGH

7.1

CVSS v3

NVD

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).

CWE-212

How to fix

Remediation Available

linuxDebian

Fixed in:5.10.127-2CVE-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

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-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

Fixed in:4.15.0.1137.131USN-5695-1

Fixed in:5.4.0.1084.92USN-5668-1

Fixed in:5.15.0.1016.18USN-5633-1

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

Fixed in:5.4.0.1034.48USN-5668-1

Fixed in:5.4.0.1034.63USN-5668-1

Fixed in:5.15.0.1015.14USN-5683-1

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

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

24thpercentile

Low risk: more likely to be exploited than 24% of all known CVEs.

References

Patch2

Vendor Advisory1

xenbits.xenproject.org

Third-Party Advisory2

Other references2

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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.