vulnerability

Ubuntu: USN-4727-1 (CVE-2021-26708): Linux kernel vulnerability

Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
Feb 5, 2021
Added
Feb 10, 2021
Modified
Mar 22, 2023

Description

A local privilege escalation was discovered in the Linux kernel before 5.10.13. Multiple race conditions in the AF_VSOCK implementation are caused by wrong locking in net/vmw_vsock/af_vsock.c. The race conditions were implicitly introduced in the commits that added VSOCK multi-transport support.

Solution(s)

ubuntu-upgrade-linux-image-5-6-0-1047-oemubuntu-upgrade-linux-image-5-8-0-1015-raspiubuntu-upgrade-linux-image-5-8-0-1015-raspi-nolpaeubuntu-upgrade-linux-image-5-8-0-1018-kvmubuntu-upgrade-linux-image-5-8-0-1020-oracleubuntu-upgrade-linux-image-5-8-0-1022-azureubuntu-upgrade-linux-image-5-8-0-1022-gcpubuntu-upgrade-linux-image-5-8-0-1023-awsubuntu-upgrade-linux-image-5-8-0-43-genericubuntu-upgrade-linux-image-5-8-0-43-generic-64kubuntu-upgrade-linux-image-5-8-0-43-generic-lpaeubuntu-upgrade-linux-image-5-8-0-43-lowlatencyubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-64kubuntu-upgrade-linux-image-generic-64k-hwe-20-04ubuntu-upgrade-linux-image-generic-hwe-20-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-20-04ubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-hwe-20-04ubuntu-upgrade-linux-image-oem-20-04ubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-raspiubuntu-upgrade-linux-image-raspi-nolpaeubuntu-upgrade-linux-image-virtualubuntu-upgrade-linux-image-virtual-hwe-20-04
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