An update for docker is now available for openEuler-20.03-LTS and openEuler-20.03-LTS-SP1 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2021-1102 Final 1.0 1.0 2021-04-07 Initial 2021-04-07 2021-04-07 openEuler SA Tool V1.0 2021-04-07 docker security update An update for docker is now available for openEuler-20.03-LTS and openEuler-20.03-LTS-SP1. Docker is an open source project to build, ship and run any application as a lightweight container. Docker containers are both hardware-agnostic and platform-agnostic. This means they can run anywhere, from your laptop to the largest EC2 compute instance and everything in between - and they don't require you to use a particular language, framework or packaging system. That makes them great building blocks for deploying and scaling web apps, databases, and backend services without depending on a particular stack or provider. Security Fix(es): In Docker before versions 9.03.15, 20.10.3 there is a vulnerability involving the --userns-remap option in which access to remapped root allows privilege escalation to real root. When using --userns-remap, if the root user in the remapped namespace has access to the host filesystem they can modify files under /var/lib/docker/<remapping> that cause writing files with extended privileges. Versions 20.10.3 and 19.03.15 contain patches that prevent privilege escalation from remapped user.(CVE-2021-21284) In Docker before versions 9.03.15, 20.10.3 there is a vulnerability in which pulling an intentionally malformed Docker image manifest crashes the dockerd daemon. Versions 20.10.3 and 19.03.15 contain patches that prevent the daemon from crashing.(CVE-2021-21285) An update for docker is now available for openEuler-20.03-LTS and openEuler-20.03-LTS-SP1. openEuler Security has rated this update as having a security impact of medium. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. Medium docker https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1102 https://openeuler.org/en/security/cve/detail.html?id=CVE-2021-21284 https://openeuler.org/en/security/cve/detail.html?id=CVE-2021-21285 https://nvd.nist.gov/vuln/detail/CVE-2021-21284 https://nvd.nist.gov/vuln/detail/CVE-2021-21285 openEuler-20.03-LTS openEuler-20.03-LTS-SP1 docker-engine-18.09.0-202.oe1.aarch64.rpm docker-engine-18.09.0-202.oe1.aarch64.rpm docker-engine-18.09.0-202.oe1.src.rpm docker-engine-18.09.0-202.oe1.src.rpm docker-engine-18.09.0-202.oe1.x86_64.rpm docker-engine-18.09.0-202.oe1.x86_64.rpm In Docker before versions 9.03.15, 20.10.3 there is a vulnerability involving the --userns-remap option in which access to remapped root allows privilege escalation to real root. When using --userns-remap, if the root user in the remapped namespace has access to the host filesystem they can modify files under /var/lib/docker/<remapping> that cause writing files with extended privileges. Versions 20.10.3 and 19.03.15 contain patches that prevent privilege escalation from remapped user. 2021-04-07 CVE-2021-21284 openEuler-20.03-LTS openEuler-20.03-LTS-SP1 Medium 6.8 AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N docker security update 2021-04-07 https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1102 In Docker before versions 9.03.15, 20.10.3 there is a vulnerability in which pulling an intentionally malformed Docker image manifest crashes the dockerd daemon. Versions 20.10.3 and 19.03.15 contain patches that prevent the daemon from crashing. 2021-04-07 CVE-2021-21285 openEuler-20.03-LTS openEuler-20.03-LTS-SP1 Medium 6.5 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H docker security update 2021-04-07 https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1102