vulnerability

Ubuntu: (Multiple Advisories) (CVE-2021-33909): Linux kernel vulnerability

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Severity	CVSS	Published	Added	Modified
7	(AV:L/AC:L/Au:N/C:C/I:C/A:C)	07/20/2021	07/21/2021	03/22/2023

Severity

CVSS

(AV:L/AC:L/Au:N/C:C/I:C/A:C)

Published

07/20/2021

Added

07/21/2021

Modified

03/22/2023

Description

fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.

Solution(s)

ubuntu-upgrade-linux-image-3-13-0-186-genericubuntu-upgrade-linux-image-3-13-0-186-generic-lpaeubuntu-upgrade-linux-image-3-13-0-186-lowlatencyubuntu-upgrade-linux-image-3-13-0-186-powerpc-e500ubuntu-upgrade-linux-image-3-13-0-186-powerpc-e500mcubuntu-upgrade-linux-image-3-13-0-186-powerpc-smpubuntu-upgrade-linux-image-3-13-0-186-powerpc64-embubuntu-upgrade-linux-image-3-13-0-186-powerpc64-smpubuntu-upgrade-linux-image-4-15-0-1078-oracleubuntu-upgrade-linux-image-4-15-0-1092-raspi2ubuntu-upgrade-linux-image-4-15-0-1097-kvmubuntu-upgrade-linux-image-4-15-0-1106-gcpubuntu-upgrade-linux-image-4-15-0-1109-awsubuntu-upgrade-linux-image-4-15-0-1109-snapdragonubuntu-upgrade-linux-image-4-15-0-1121-azureubuntu-upgrade-linux-image-4-15-0-151-genericubuntu-upgrade-linux-image-4-15-0-151-generic-lpaeubuntu-upgrade-linux-image-4-15-0-151-lowlatencyubuntu-upgrade-linux-image-4-4-0-1094-awsubuntu-upgrade-linux-image-4-4-0-1095-kvmubuntu-upgrade-linux-image-4-4-0-1130-awsubuntu-upgrade-linux-image-4-4-0-212-genericubuntu-upgrade-linux-image-4-4-0-212-lowlatencyubuntu-upgrade-linux-image-5-10-0-1038-oemubuntu-upgrade-linux-image-5-11-0-1012-azureubuntu-upgrade-linux-image-5-11-0-1012-kvmubuntu-upgrade-linux-image-5-11-0-1013-oracleubuntu-upgrade-linux-image-5-11-0-1014-awsubuntu-upgrade-linux-image-5-11-0-1014-gcpubuntu-upgrade-linux-image-5-11-0-1015-raspiubuntu-upgrade-linux-image-5-11-0-1015-raspi-nolpaeubuntu-upgrade-linux-image-5-11-0-25-genericubuntu-upgrade-linux-image-5-11-0-25-generic-64kubuntu-upgrade-linux-image-5-11-0-25-generic-lpaeubuntu-upgrade-linux-image-5-11-0-25-lowlatencyubuntu-upgrade-linux-image-5-3-0-1042-raspi2ubuntu-upgrade-linux-image-5-3-0-1045-gkeubuntu-upgrade-linux-image-5-3-0-76-genericubuntu-upgrade-linux-image-5-3-0-76-lowlatencyubuntu-upgrade-linux-image-5-4-0-1021-gkeopubuntu-upgrade-linux-image-5-4-0-1041-raspiubuntu-upgrade-linux-image-5-4-0-1044-kvmubuntu-upgrade-linux-image-5-4-0-1049-gcpubuntu-upgrade-linux-image-5-4-0-1049-gkeubuntu-upgrade-linux-image-5-4-0-1052-oracleubuntu-upgrade-linux-image-5-4-0-1054-awsubuntu-upgrade-linux-image-5-4-0-1055-azureubuntu-upgrade-linux-image-5-4-0-80-genericubuntu-upgrade-linux-image-5-4-0-80-generic-lpaeubuntu-upgrade-linux-image-5-4-0-80-lowlatencyubuntu-upgrade-linux-image-5-8-0-1032-raspiubuntu-upgrade-linux-image-5-8-0-1032-raspi-nolpaeubuntu-upgrade-linux-image-5-8-0-1033-kvmubuntu-upgrade-linux-image-5-8-0-1037-oracleubuntu-upgrade-linux-image-5-8-0-1038-gcpubuntu-upgrade-linux-image-5-8-0-1039-azureubuntu-upgrade-linux-image-5-8-0-1041-awsubuntu-upgrade-linux-image-5-8-0-63-genericubuntu-upgrade-linux-image-5-8-0-63-generic-64kubuntu-upgrade-linux-image-5-8-0-63-generic-lpaeubuntu-upgrade-linux-image-5-8-0-63-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-18-04ubuntu-upgrade-linux-image-azure-lts-20-04ubuntu-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-20-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-18-04ubuntu-upgrade-linux-image-generic-lpae-hwe-20-04ubuntu-upgrade-linux-image-generic-lts-xenialubuntu-upgrade-linux-image-generic-paeubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-gke-5-3ubuntu-upgrade-linux-image-gke-5-4ubuntu-upgrade-linux-image-gkeopubuntu-upgrade-linux-image-gkeop-5-3ubuntu-upgrade-linux-image-gkeop-5-4ubuntu-upgrade-linux-image-highbankubuntu-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-hwe-20-04ubuntu-upgrade-linux-image-lowlatency-lts-xenialubuntu-upgrade-linux-image-lowlatency-paeubuntu-upgrade-linux-image-oemubuntu-upgrade-linux-image-oem-20-04ubuntu-upgrade-linux-image-oem-20-04bubuntu-upgrade-linux-image-oem-osp1ubuntu-upgrade-linux-image-omapubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-oracle-lts-18-04ubuntu-upgrade-linux-image-oracle-lts-20-04ubuntu-upgrade-linux-image-powerpc-e500ubuntu-upgrade-linux-image-powerpc-e500mcubuntu-upgrade-linux-image-powerpc-smpubuntu-upgrade-linux-image-powerpc64-embubuntu-upgrade-linux-image-powerpc64-smpubuntu-upgrade-linux-image-raspiubuntu-upgrade-linux-image-raspi-hwe-18-04ubuntu-upgrade-linux-image-raspi-nolpaeubuntu-upgrade-linux-image-raspi2ubuntu-upgrade-linux-image-raspi2-hwe-18-04ubuntu-upgrade-linux-image-serverubuntu-upgrade-linux-image-snapdragonubuntu-upgrade-linux-image-snapdragon-hwe-18-04ubuntu-upgrade-linux-image-virtualubuntu-upgrade-linux-image-virtual-hwe-16-04ubuntu-upgrade-li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Ubuntu: (Multiple Advisories) (CVE-2021-33909): Linux kernel vulnerability

Description

Solution(s)

References

Explore Exposure Command