vulnerability
Ubuntu: (Multiple Advisories) (CVE-2021-3640): Linux kernel vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:M/Au:N/C:C/I:C/A:C) | Sep 16, 2021 | Feb 3, 2022 | Jan 23, 2025 |
Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
Sep 16, 2021
Added
Feb 3, 2022
Modified
Jan 23, 2025
Description
A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system.
Solution(s)
ubuntu-upgrade-linux-image-4-15-0-1034-dell300xubuntu-upgrade-linux-image-4-15-0-1086-oracleubuntu-upgrade-linux-image-4-15-0-1102-raspi2ubuntu-upgrade-linux-image-4-15-0-1106-kvmubuntu-upgrade-linux-image-4-15-0-1115-gcpubuntu-upgrade-linux-image-4-15-0-1119-snapdragonubuntu-upgrade-linux-image-4-15-0-1130-azureubuntu-upgrade-linux-image-4-15-0-167-genericubuntu-upgrade-linux-image-4-15-0-167-generic-lpaeubuntu-upgrade-linux-image-4-15-0-167-lowlatencyubuntu-upgrade-linux-image-5-11-0-1028-azureubuntu-upgrade-linux-image-5-11-0-1028-oracleubuntu-upgrade-linux-image-5-11-0-1029-gcpubuntu-upgrade-linux-image-5-13-0-1011-kvmubuntu-upgrade-linux-image-5-13-0-1012-awsubuntu-upgrade-linux-image-5-13-0-1013-gcpubuntu-upgrade-linux-image-5-13-0-1016-oracleubuntu-upgrade-linux-image-5-13-0-1016-raspiubuntu-upgrade-linux-image-5-13-0-1016-raspi-nolpaeubuntu-upgrade-linux-image-5-13-0-1029-oemubuntu-upgrade-linux-image-5-13-0-28-genericubuntu-upgrade-linux-image-5-13-0-28-generic-64kubuntu-upgrade-linux-image-5-13-0-28-generic-lpaeubuntu-upgrade-linux-image-5-13-0-28-lowlatencyubuntu-upgrade-linux-image-5-4-0-1013-ibmubuntu-upgrade-linux-image-5-4-0-1026-bluefieldubuntu-upgrade-linux-image-5-4-0-1032-gkeopubuntu-upgrade-linux-image-5-4-0-1052-raspiubuntu-upgrade-linux-image-5-4-0-1054-kvmubuntu-upgrade-linux-image-5-4-0-1062-oracleubuntu-upgrade-linux-image-5-4-0-1063-gcpubuntu-upgrade-linux-image-5-4-0-1064-awsubuntu-upgrade-linux-image-5-4-0-1068-azureubuntu-upgrade-linux-image-5-4-0-97-genericubuntu-upgrade-linux-image-5-4-0-97-generic-lpaeubuntu-upgrade-linux-image-5-4-0-97-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-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-64kubuntu-upgrade-linux-image-generic-64k-hwe-20-04ubuntu-upgrade-linux-image-generic-hwe-16-04ubuntu-upgrade-linux-image-generic-hwe-18-04ubuntu-upgrade-linux-image-generic-hwe-18-04-edgeubuntu-upgrade-linux-image-generic-hwe-20-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-18-04ubuntu-upgrade-linux-image-generic-lpae-hwe-18-04-edgeubuntu-upgrade-linux-image-generic-lpae-hwe-20-04ubuntu-upgrade-linux-image-gkeubuntu-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-16-04-edgeubuntu-upgrade-linux-image-lowlatency-hwe-18-04ubuntu-upgrade-linux-image-lowlatency-hwe-18-04-edgeubuntu-upgrade-linux-image-lowlatency-hwe-20-04ubuntu-upgrade-linux-image-oemubuntu-upgrade-linux-image-oem-20-04ubuntu-upgrade-linux-image-oem-20-04cubuntu-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-raspi-nolpaeubuntu-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-hwe-18-04-edgeubuntu-upgrade-linux-image-virtual-hwe-20-04
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