vulnerability
Ubuntu: (Multiple Advisories) (CVE-2020-27170): Linux kernel vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 2 | (AV:L/AC:M/Au:N/C:P/I:N/A:N) | Mar 20, 2021 | Mar 24, 2021 | Mar 22, 2023 |
Severity
2
CVSS
(AV:L/AC:M/Au:N/C:P/I:N/A:N)
Published
Mar 20, 2021
Added
Mar 24, 2021
Modified
Mar 22, 2023
Description
An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory, aka CID-f232326f6966. This affects pointer types that do not define a ptr_limit.
Solution(s)
ubuntu-upgrade-linux-image-4-15-0-1015-dell300xubuntu-upgrade-linux-image-4-15-0-1068-oracleubuntu-upgrade-linux-image-4-15-0-1082-raspi2ubuntu-upgrade-linux-image-4-15-0-1088-kvmubuntu-upgrade-linux-image-4-15-0-1096-gcpubuntu-upgrade-linux-image-4-15-0-1097-awsubuntu-upgrade-linux-image-4-15-0-1099-snapdragonubuntu-upgrade-linux-image-4-15-0-1111-azureubuntu-upgrade-linux-image-4-15-0-140-genericubuntu-upgrade-linux-image-4-15-0-140-generic-lpaeubuntu-upgrade-linux-image-4-15-0-140-lowlatencyubuntu-upgrade-linux-image-5-10-0-1019-oemubuntu-upgrade-linux-image-5-3-0-1038-raspi2ubuntu-upgrade-linux-image-5-3-0-1041-gkeubuntu-upgrade-linux-image-5-3-0-72-genericubuntu-upgrade-linux-image-5-3-0-72-lowlatencyubuntu-upgrade-linux-image-5-4-0-1012-gkeopubuntu-upgrade-linux-image-5-4-0-1032-raspiubuntu-upgrade-linux-image-5-4-0-1036-kvmubuntu-upgrade-linux-image-5-4-0-1039-gkeubuntu-upgrade-linux-image-5-4-0-1040-gcpubuntu-upgrade-linux-image-5-4-0-1041-awsubuntu-upgrade-linux-image-5-4-0-1041-oracleubuntu-upgrade-linux-image-5-4-0-1043-azureubuntu-upgrade-linux-image-5-4-0-70-genericubuntu-upgrade-linux-image-5-4-0-70-generic-lpaeubuntu-upgrade-linux-image-5-4-0-70-lowlatencyubuntu-upgrade-linux-image-5-6-0-1052-oemubuntu-upgrade-linux-image-5-8-0-1019-raspiubuntu-upgrade-linux-image-5-8-0-1019-raspi-nolpaeubuntu-upgrade-linux-image-5-8-0-1022-kvmubuntu-upgrade-linux-image-5-8-0-1024-oracleubuntu-upgrade-linux-image-5-8-0-1026-azureubuntu-upgrade-linux-image-5-8-0-1026-gcpubuntu-upgrade-linux-image-5-8-0-1027-awsubuntu-upgrade-linux-image-5-8-0-48-genericubuntu-upgrade-linux-image-5-8-0-48-generic-64kubuntu-upgrade-linux-image-5-8-0-48-generic-lpaeubuntu-upgrade-linux-image-5-8-0-48-lowlatencyubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-aws-hweubuntu-upgrade-linux-image-aws-lts-18-04ubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-azure-lts-18-04ubuntu-upgrade-linux-image-dell300xubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-gcp-lts-18-04ubuntu-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-16-04ubuntu-upgrade-linux-image-generic-lpae-hwe-18-04ubuntu-upgrade-linux-image-generic-lpae-hwe-20-04ubuntu-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-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-oemubuntu-upgrade-linux-image-oem-20-04ubuntu-upgrade-linux-image-oem-20-04bubuntu-upgrade-linux-image-oem-osp1ubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-oracle-lts-18-04ubuntu-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-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-hwe-20-04
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