vulnerability
Ubuntu: (Multiple Advisories) (CVE-2021-33656): Linux kernel (AWS) vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:N/C:C/I:C/A:C) | Jul 18, 2022 | Aug 25, 2022 | Aug 18, 2025 |
Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
Jul 18, 2022
Added
Aug 25, 2022
Modified
Aug 18, 2025
Description
When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.
Solutions
ubuntu-upgrade-linux-image-4-15-0-1052-dell300xubuntu-upgrade-linux-image-4-15-0-1105-oracleubuntu-upgrade-linux-image-4-15-0-1126-kvmubuntu-upgrade-linux-image-4-15-0-1135-gcpubuntu-upgrade-linux-image-4-15-0-1136-snapdragonubuntu-upgrade-linux-image-4-15-0-1140-awsubuntu-upgrade-linux-image-4-15-0-1140-aws-hweubuntu-upgrade-linux-image-4-15-0-1150-azureubuntu-upgrade-linux-image-4-15-0-192-genericubuntu-upgrade-linux-image-4-15-0-192-generic-lpaeubuntu-upgrade-linux-image-4-15-0-192-lowlatencyubuntu-upgrade-linux-image-4-4-0-1113-awsubuntu-upgrade-linux-image-4-4-0-1114-kvmubuntu-upgrade-linux-image-4-4-0-1150-awsubuntu-upgrade-linux-image-4-4-0-1151-awsubuntu-upgrade-linux-image-4-4-0-234-genericubuntu-upgrade-linux-image-4-4-0-234-lowlatencyubuntu-upgrade-linux-image-5-4-0-1032-ibmubuntu-upgrade-linux-image-5-4-0-1045-bluefieldubuntu-upgrade-linux-image-5-4-0-1052-gkeopubuntu-upgrade-linux-image-5-4-0-1069-raspiubuntu-upgrade-linux-image-5-4-0-1074-kvmubuntu-upgrade-linux-image-5-4-0-1081-gkeubuntu-upgrade-linux-image-5-4-0-1082-oracleubuntu-upgrade-linux-image-5-4-0-1084-awsubuntu-upgrade-linux-image-5-4-0-1087-gcpubuntu-upgrade-linux-image-5-4-0-1090-azureubuntu-upgrade-linux-image-5-4-0-1090-azure-fdeubuntu-upgrade-linux-image-5-4-0-125-genericubuntu-upgrade-linux-image-5-4-0-125-generic-lpaeubuntu-upgrade-linux-image-5-4-0-125-lowlatencyubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-aws-hweubuntu-upgrade-linux-image-aws-lts-18-04ubuntu-upgrade-linux-image-aws-lts-20-04ubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-azure-fdeubuntu-upgrade-linux-image-azure-lts-18-04ubuntu-upgrade-linux-image-azure-lts-20-04ubuntu-upgrade-linux-image-bluefieldubuntu-upgrade-linux-image-dell300xubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-gcp-lts-18-04ubuntu-upgrade-linux-image-gcp-lts-20-04ubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-hwe-16-04ubuntu-upgrade-linux-image-generic-hwe-18-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-18-04ubuntu-upgrade-linux-image-generic-lts-xenialubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-gke-5-4ubuntu-upgrade-linux-image-gkeopubuntu-upgrade-linux-image-gkeop-5-4ubuntu-upgrade-linux-image-ibmubuntu-upgrade-linux-image-ibm-lts-20-04ubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-hwe-16-04ubuntu-upgrade-linux-image-lowlatency-hwe-18-04ubuntu-upgrade-linux-image-lowlatency-lts-xenialubuntu-upgrade-linux-image-oemubuntu-upgrade-linux-image-oem-osp1ubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-oracle-lts-18-04ubuntu-upgrade-linux-image-oracle-lts-20-04ubuntu-upgrade-linux-image-raspiubuntu-upgrade-linux-image-raspi-hwe-18-04ubuntu-upgrade-linux-image-raspi2ubuntu-upgrade-linux-image-snapdragonubuntu-upgrade-linux-image-snapdragon-hwe-18-04ubuntu-upgrade-linux-image-virtualubuntu-upgrade-linux-image-virtual-hwe-16-04ubuntu-upgrade-linux-image-virtual-hwe-18-04ubuntu-upgrade-linux-image-virtual-lts-xenial
References
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