vulnerability

Ubuntu: (Multiple Advisories) (CVE-2021-20177): Linux kernel vulnerabilities

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Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Published
Feb 6, 2021
Added
Feb 26, 2021
Modified
Nov 7, 2024

Description

A flaw was found in the Linux kernel's implementation of string matching within a packet. A privileged user (with root or CAP_NET_ADMIN) when inserting iptables rules could insert a rule which can panic the system. Kernel before kernel 5.5-rc1 is affected.

Solution(s)

ubuntu-upgrade-linux-image-5-4-0-1010-gkeopubuntu-upgrade-linux-image-5-4-0-1029-raspiubuntu-upgrade-linux-image-5-4-0-1033-kvmubuntu-upgrade-linux-image-5-4-0-1036-gkeubuntu-upgrade-linux-image-5-4-0-1037-gcpubuntu-upgrade-linux-image-5-4-0-1038-awsubuntu-upgrade-linux-image-5-4-0-1038-oracleubuntu-upgrade-linux-image-5-4-0-1040-azureubuntu-upgrade-linux-image-5-4-0-66-genericubuntu-upgrade-linux-image-5-4-0-66-generic-lpaeubuntu-upgrade-linux-image-5-4-0-66-lowlatencyubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-hwe-18-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-18-04ubuntu-upgrade-linux-image-gke-5-4ubuntu-upgrade-linux-image-gkeopubuntu-upgrade-linux-image-gkeop-5-4ubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-hwe-18-04ubuntu-upgrade-linux-image-oemubuntu-upgrade-linux-image-oem-osp1ubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-raspiubuntu-upgrade-linux-image-raspi-hwe-18-04ubuntu-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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