vulnerability

Ubuntu: (Multiple Advisories) (CVE-2022-0185): Linux kernel vulnerability

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Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
2022-02-11
Added
2022-04-01
Modified
2024-08-22

Description

A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to legacy handling) could use this flaw to escalate their privileges on the system.

Solution(s)

ubuntu-upgrade-linux-image-5-10-0-1057-oemubuntu-upgrade-linux-image-5-11-0-1024-kvmubuntu-upgrade-linux-image-5-11-0-1027-awsubuntu-upgrade-linux-image-5-11-0-1027-azureubuntu-upgrade-linux-image-5-11-0-1027-oracleubuntu-upgrade-linux-image-5-11-0-1027-raspiubuntu-upgrade-linux-image-5-11-0-1027-raspi-nolpaeubuntu-upgrade-linux-image-5-11-0-1028-gcpubuntu-upgrade-linux-image-5-11-0-49-genericubuntu-upgrade-linux-image-5-11-0-49-generic-64kubuntu-upgrade-linux-image-5-11-0-49-generic-lpaeubuntu-upgrade-linux-image-5-11-0-49-lowlatencyubuntu-upgrade-linux-image-5-13-0-1010-intelubuntu-upgrade-linux-image-5-13-0-1010-kvmubuntu-upgrade-linux-image-5-13-0-1011-awsubuntu-upgrade-linux-image-5-13-0-1012-azureubuntu-upgrade-linux-image-5-13-0-1012-gcpubuntu-upgrade-linux-image-5-13-0-1015-oracleubuntu-upgrade-linux-image-5-13-0-1015-raspiubuntu-upgrade-linux-image-5-13-0-1015-raspi-nolpaeubuntu-upgrade-linux-image-5-13-0-1028-oemubuntu-upgrade-linux-image-5-13-0-27-genericubuntu-upgrade-linux-image-5-13-0-27-generic-64kubuntu-upgrade-linux-image-5-13-0-27-generic-lpaeubuntu-upgrade-linux-image-5-13-0-27-lowlatencyubuntu-upgrade-linux-image-5-14-0-1020-oemubuntu-upgrade-linux-image-5-4-0-1012-ibmubuntu-upgrade-linux-image-5-4-0-1025-bluefieldubuntu-upgrade-linux-image-5-4-0-1031-gkeopubuntu-upgrade-linux-image-5-4-0-1050-raspiubuntu-upgrade-linux-image-5-4-0-1053-kvmubuntu-upgrade-linux-image-5-4-0-1059-gkeubuntu-upgrade-linux-image-5-4-0-1061-oracleubuntu-upgrade-linux-image-5-4-0-1062-gcpubuntu-upgrade-linux-image-5-4-0-1067-azureubuntu-upgrade-linux-image-5-4-0-96-genericubuntu-upgrade-linux-image-5-4-0-96-generic-lpaeubuntu-upgrade-linux-image-5-4-0-96-lowlatencyubuntu-upgrade-linux-image-awsubuntu-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-gcpubuntu-upgrade-linux-image-gcp-lts-20-04ubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-64kubuntu-upgrade-linux-image-generic-hwe-18-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-18-04ubuntu-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-intelubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-hwe-18-04ubuntu-upgrade-linux-image-oemubuntu-upgrade-linux-image-oem-20-04ubuntu-upgrade-linux-image-oem-20-04bubuntu-upgrade-linux-image-oem-20-04cubuntu-upgrade-linux-image-oem-20-04dubuntu-upgrade-linux-image-oem-osp1ubuntu-upgrade-linux-image-oracleubuntu-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-snapdragon-hwe-18-04ubuntu-upgrade-linux-image-virtualubuntu-upgrade-linux-image-virtual-hwe-18-04

References

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