Name: CVE-2020-25668: Concurrent Execution using Shared Resource with Improper Synchronization
Published: 2021-05-26T00:00:00.000Z
Keywords: CVE, CVE-2020-25668, CWE-362, CWE-662, CVSS 7, EPSS 0.01026

A flaw was found in Linux Kernel because access to the global variable fg_console is not properly synchronized leading to a use after free in con_font_op.

CVSS Details

CVSS 3.1 Base Score: 7
CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Amazon Linux Ami 2	View advisory ↗	amazon-linux-ami-2-upgrade-kernelamazon-linux-ami-2-upgrade-kernel-debuginfoamazon-linux-ami-2-upgrade-kernel-debuginfo-common-aarch64amazon-linux-ami-2-upgrade-kernel-debuginfo-common-x86_64amazon-linux-ami-2-upgrade-kernel-develamazon-linux-ami-2-upgrade-kernel-headersamazon-linux-ami-2-upgrade-kernel-livepatch-4-14-209-160-335amazon-linux-ami-2-upgrade-kernel-toolsamazon-linux-ami-2-upgrade-kernel-tools-debuginfoamazon-linux-ami-2-upgrade-kernel-tools-develamazon-linux-ami-2-upgrade-perfamazon-linux-ami-2-upgrade-perf-debuginfoamazon-linux-ami-2-upgrade-python-perfamazon-linux-ami-2-upgrade-python-perf-debuginfo	Dec 10, 2020	Dec 10, 2020
Amazon_linux	—	amazon-linux-upgrade-kernel	Dec 19, 2020	Nov 14, 2020
Debian	View advisory ↗	debian-upgrade-linux	Dec 7, 2020	Dec 7, 2020
Huawei Euleros 2_0_sp8	View advisory ↗	huawei-euleros-2_0_sp8-upgrade-bpftoolhuawei-euleros-2_0_sp8-upgrade-kernelhuawei-euleros-2_0_sp8-upgrade-kernel-develhuawei-euleros-2_0_sp8-upgrade-kernel-headershuawei-euleros-2_0_sp8-upgrade-kernel-sourcehuawei-euleros-2_0_sp8-upgrade-kernel-toolshuawei-euleros-2_0_sp8-upgrade-kernel-tools-libshuawei-euleros-2_0_sp8-upgrade-perfhuawei-euleros-2_0_sp8-upgrade-python-perfhuawei-euleros-2_0_sp8-upgrade-python3-perf	Dec 15, 2020	Dec 14, 2020
Huawei Euleros 2_0_sp9	View advisory ↗	huawei-euleros-2_0_sp9-upgrade-kernelhuawei-euleros-2_0_sp9-upgrade-kernel-toolshuawei-euleros-2_0_sp9-upgrade-kernel-tools-libshuawei-euleros-2_0_sp9-upgrade-python3-perf	Jan 5, 2021	Dec 14, 2020
Oracle_linux	—	oracle-linux-upgrade-kernel-uek	Dec 15, 2020	Oct 30, 2020
Suse	—	suse-upgrade-kernel-defaultsuse-upgrade-kernel-default-extrasuse-upgrade-kernel-docssuse-upgrade-kernel-obs-build	Nov 14, 2020	Nov 14, 2020
Ubuntu	View advisory ↗	ubuntu-upgrade-linux-image-4-15-0-1062-oracleubuntu-upgrade-linux-image-4-15-0-1077-gkeubuntu-upgrade-linux-image-4-15-0-1077-raspi2ubuntu-upgrade-linux-image-4-15-0-1082-kvmubuntu-upgrade-linux-image-4-15-0-1091-awsubuntu-upgrade-linux-image-4-15-0-1091-gcpubuntu-upgrade-linux-image-4-15-0-1094-snapdragonubuntu-upgrade-linux-image-4-15-0-1103-azureubuntu-upgrade-linux-image-4-15-0-129-genericubuntu-upgrade-linux-image-4-15-0-129-generic-lpaeubuntu-upgrade-linux-image-4-15-0-129-lowlatencyubuntu-upgrade-linux-image-4-4-0-1083-awsubuntu-upgrade-linux-image-4-4-0-1085-kvmubuntu-upgrade-linux-image-4-4-0-1119-awsubuntu-upgrade-linux-image-4-4-0-1143-raspi2ubuntu-upgrade-linux-image-4-4-0-1147-snapdragonubuntu-upgrade-linux-image-4-4-0-198-genericubuntu-upgrade-linux-image-4-4-0-198-generic-lpaeubuntu-upgrade-linux-image-4-4-0-198-lowlatencyubuntu-upgrade-linux-image-4-4-0-198-powerpc-e500mcubuntu-upgrade-linux-image-4-4-0-198-powerpc-smpubuntu-upgrade-linux-image-4-4-0-198-powerpc64-embubuntu-upgrade-linux-image-4-4-0-198-powerpc64-smpubuntu-upgrade-linux-image-5-4-0-1026-raspiubuntu-upgrade-linux-image-5-4-0-1031-kvmubuntu-upgrade-linux-image-5-4-0-1033-gcpubuntu-upgrade-linux-image-5-4-0-1033-gkeubuntu-upgrade-linux-image-5-4-0-1034-awsubuntu-upgrade-linux-image-5-4-0-1034-oracleubuntu-upgrade-linux-image-5-4-0-1035-azureubuntu-upgrade-linux-image-5-4-0-59-genericubuntu-upgrade-linux-image-5-4-0-59-generic-lpaeubuntu-upgrade-linux-image-5-4-0-59-lowlatencyubuntu-upgrade-linux-image-5-8-0-1016-raspiubuntu-upgrade-linux-image-5-8-0-1016-raspi-nolpaeubuntu-upgrade-linux-image-5-8-0-1019-kvmubuntu-upgrade-linux-image-5-8-0-1021-oracleubuntu-upgrade-linux-image-5-8-0-1023-azureubuntu-upgrade-linux-image-5-8-0-1023-gcpubuntu-upgrade-linux-image-5-8-0-1024-awsubuntu-upgrade-linux-image-5-8-0-44-genericubuntu-upgrade-linux-image-5-8-0-44-generic-64kubuntu-upgrade-linux-image-5-8-0-44-generic-lpaeubuntu-upgrade-linux-image-5-8-0-44-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-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-generic-lpae-lts-xenialubuntu-upgrade-linux-image-generic-lts-xenialubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-gke-4-15ubuntu-upgrade-linux-image-gke-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-lowlatency-lts-xenialubuntu-upgrade-linux-image-oemubuntu-upgrade-linux-image-oem-20-04ubuntu-upgrade-linux-image-oem-osp1ubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-oracle-lts-18-04ubuntu-upgrade-linux-image-powerpc-e500mcubuntu-upgrade-linux-image-powerpc-e500mc-lts-xenialubuntu-upgrade-linux-image-powerpc-smpubuntu-upgrade-linux-image-powerpc-smp-lts-xenialubuntu-upgrade-linux-image-powerpc64-embubuntu-upgrade-linux-image-powerpc64-emb-lts-xenialubuntu-upgrade-linux-image-powerpc64-smpubuntu-upgrade-linux-image-powerpc64-smp-lts-xenialubuntu-upgrade-linux-image-raspiubuntu-upgrade-linux-image-raspi-hwe-18-04ubuntu-upgrade-linux-image-raspi-nolpaeubuntu-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-hwe-20-04ubuntu-upgrade-linux-image-virtual-lts-xenial	Jan 6, 2021	Nov 14, 2020
Vmware Photon_os	View advisory ↗	vmware-photon_os_update_tdnf	Jan 20, 2025	May 26, 2021

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