vulnerability

Ubuntu: (Multiple Advisories) (CVE-2021-45402): Linux kernel vulnerabilities

Try Surface Command
Back to search
Severity
2
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:N)
Published
Feb 11, 2022
Added
Mar 22, 2022
Modified
Mar 22, 2023

Description

The check_alu_op() function in kernel/bpf/verifier.c in the Linux kernel through v5.16-rc5 did not properly update bounds while handling the mov32 instruction, which allows local users to obtain potentially sensitive address information, aka a "pointer leak."

Solution(s)

ubuntu-upgrade-linux-image-5-13-0-1018-kvmubuntu-upgrade-linux-image-5-13-0-1019-awsubuntu-upgrade-linux-image-5-13-0-1021-azureubuntu-upgrade-linux-image-5-13-0-1021-gcpubuntu-upgrade-linux-image-5-13-0-1022-raspiubuntu-upgrade-linux-image-5-13-0-1022-raspi-nolpaeubuntu-upgrade-linux-image-5-13-0-1023-oracleubuntu-upgrade-linux-image-5-13-0-1025-oracleubuntu-upgrade-linux-image-5-13-0-37-genericubuntu-upgrade-linux-image-5-13-0-37-generic-64kubuntu-upgrade-linux-image-5-13-0-37-generic-lpaeubuntu-upgrade-linux-image-5-13-0-37-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

References

Title
NEW

Explore Exposure Command

Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.

Try it today