vulnerability
Ubuntu: (Multiple Advisories) (CVE-2021-3428): Linux kernel vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:N/C:N/I:N/A:C) | Apr 10, 2021 | Jun 3, 2021 | Aug 18, 2025 |
Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
Apr 10, 2021
Added
Jun 3, 2021
Modified
Aug 18, 2025
Description
A flaw was found in the Linux kernel. A denial of service problem is identified if an extent tree is corrupted in a crafted ext4 filesystem in fs/ext4/extents.c in ext4_es_cache_extent. Fabricating an integer overflow, A local attacker with a special user privilege may cause a system crash problem which can lead to an availability threat.
Solutions
ubuntu-upgrade-linux-image-4-15-0-1072-oracleubuntu-upgrade-linux-image-4-15-0-1086-raspi2ubuntu-upgrade-linux-image-4-15-0-1092-kvmubuntu-upgrade-linux-image-4-15-0-1100-gcpubuntu-upgrade-linux-image-4-15-0-1103-awsubuntu-upgrade-linux-image-4-15-0-1103-snapdragonubuntu-upgrade-linux-image-4-15-0-1115-azureubuntu-upgrade-linux-image-4-15-0-144-genericubuntu-upgrade-linux-image-4-15-0-144-generic-lpaeubuntu-upgrade-linux-image-4-15-0-144-lowlatencyubuntu-upgrade-linux-image-4-4-0-1117-awsubuntu-upgrade-linux-image-4-4-0-1118-kvmubuntu-upgrade-linux-image-4-4-0-1155-awsubuntu-upgrade-linux-image-4-4-0-239-genericubuntu-upgrade-linux-image-4-4-0-239-lowlatencyubuntu-upgrade-linux-image-5-4-0-1007-ibmubuntu-upgrade-linux-image-5-4-0-1021-bluefieldubuntu-upgrade-linux-image-5-4-0-1026-gkeopubuntu-upgrade-linux-image-5-4-0-1046-raspiubuntu-upgrade-linux-image-5-4-0-1049-kvmubuntu-upgrade-linux-image-5-4-0-1055-gkeubuntu-upgrade-linux-image-5-4-0-1057-gcpubuntu-upgrade-linux-image-5-4-0-1057-oracleubuntu-upgrade-linux-image-5-4-0-1059-awsubuntu-upgrade-linux-image-5-4-0-1063-azureubuntu-upgrade-linux-image-5-4-0-90-genericubuntu-upgrade-linux-image-5-4-0-90-generic-lpaeubuntu-upgrade-linux-image-5-4-0-90-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-bluefieldubuntu-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-hwe-16-04ubuntu-upgrade-linux-image-generic-hwe-18-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-18-04ubuntu-upgrade-linux-image-generic-lts-xenialubuntu-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-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-hwe-16-04ubuntu-upgrade-linux-image-lowlatency-hwe-18-04ubuntu-upgrade-linux-image-lowlatency-lts-xenialubuntu-upgrade-linux-image-oemubuntu-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-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-lts-xenial
References
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