SVG:Advisory-SVG-CVE-2021-3560
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Advisory-SVG-CVE-2021-3560
Title: EGI SVG 'ADVISORY' [TLP:WHITE] CRITICAL risk polkit vulnerability - RHEL/CentOS 8 and derivatives CVE-2021-3560 [EGI-SVG-CVE-2021-3560] Date: 2021-06-16 Updated: 2021-06-30 Changed to [TLP:WHITE] and placed on the wiki. Affected software and risk ========================== CRITICAL risk vulnerability concerning polkit version in RedHat Enterprise 8 and its derivatives Package : polkit CVE ID : CVE-2021-3560 A local privilege escalation vulnerability has been found in polkit versions used in Red Hat Enterprise Linux 8 and its derivatives. [R 1] [R 2]. This was fixed by RedHat in a release from 3rd June 2021. Actions required/recommended ============================ Sites running RHEL 8 and its derivatives are required to urgently install a patched version, if they have not done so already. All running resources MUST be either patched or have mitigation in place or software removed by 2021-06-23 00:00 UTC Sites failing to act and/or failing to respond to requests from the EGI CSIRT team risk site suspension. Component installation information ================================== Sites running RHEL 8 should see [R 2] Sites running CentOS8 should also see [R 2] Sites running Debian should see [R 3] Sites running Ubuntu should see [R 4] Affected software details ========================= RHEL 8 and its derivatives are affected. RHEL 7 and its derivatives do not appear to be affected. TLP and URL =========== ** WHITE information - Limited distribution - see https://wiki.egi.eu/wiki/EGI_CSIRT:TLP for distribution restrictions ** URL: https://wiki.egi.eu/wiki/SVG:Advisory-SVG-CVE-2021-3560 Minor updates may be made without re-distribution to the sites Comments ======== Comments or questions should be sent to svg-rat at mailman.egi.eu If you find or become aware of another vulnerability which is relevant to EGI you may report it by e-mail to report-vulnerability at egi.eu the EGI Software Vulnerability Group will take a look according to the procedure defined in [R 5] Note that this is undergoing revision to fully handle vulnerabilities in the EOSC-hub era. References ========== [R 1] https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/ [R 2] https://access.redhat.com/security/cve/cve-2021-3560 [R 3] https://security-tracker.debian.org/tracker/CVE-2021-3560 [R 4] https://ubuntu.com/security/CVE-2021-3560 [R 5] https://documents.egi.eu/public/ShowDocument?docid=3145 Credit ====== SVG was alerted to this vulnerability by Barbara Krasovec who is a member of the EGI SVG Timeline ======== Yyyy-mm-dd [EGI-SVG-2021-CVE-2021-3560] 2021-06-14 SVG alerted to this issue by Barbara Krasovec 2021-06-03 Fixed version available from RedHat 2021-06-15 EGI SVG Risk Assessment completed 2021-06-16 Advisory sent to sites Context ======= This advisory has been prepared as part of the effort to fulfil EGI SVG's purpose "To minimize the risk to the EGI infrastructure arising from software vulnerabilities" The risk is that assessed by the group, according to the EGI SVG issue handling procedure [R 5] in the context of how the software is used in the EGI infrastructure. It is the opinion of the group, we do not guarantee it to be correct. The risk may also be higher or lower in other deployments depending on how the software is used. ----------------------------- Others may re-use this information provided they:- 1) Respect the provided TLP classification 2) Credit the EGI https://www.egi.eu/ Software Vulnerability Group ------------------------------ Note that the SVG issue handling procedure is currently under review, to take account of the increasing inhomogeneity of the EGI infrastructure and the services in the EOSC-hub catalogue. On behalf of the EGI SVG,