CVE-2020-10781

CVE Details

Release Date:2020-09-16

Description


A flaw was found in the Linux Kernel before 5.8-rc6 in the ZRAM kernel module, where a user with a local account and the ability to read the /sys/class/zram-control/hot_add file can create ZRAM device nodes in the /dev/ directory. This read allocates kernel memory and is not accounted for a user that triggers the creation of that ZRAM device. With this vulnerability, continually reading the device may consume a large amount of system memory and cause the Out-of-Memory (OOM) killer to activate and terminate random userspace processes, possibly making the system inoperable.

See more information about CVE-2020-10781 from MITRE CVE dictionary and NIST NVD


CVSS v3.0 metrics


NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score: 5.5 Base Metrics: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Access Vector: Local network Attack Complexity: Low
Privileges Required: Low User Interaction: None
Scope: Unchanged Confidentiality Impact: None
Integrity Impact: None Availability Impact: High

Errata information


PlatformErrataRelease Date
Oracle Linux version 7 (kernel-uek)ELSA-2020-58442020-09-11
Oracle Linux version 7 (kernel-uek)ELSA-2020-58452020-09-11
Oracle Linux version 7 (kernel-uek)ELSA-2020-58482020-09-14
Oracle Linux version 7 (kernel-uek)ELSA-2020-58852020-10-12
Oracle Linux version 8 (kernel-uek)ELSA-2020-58482020-09-14



This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team

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