CVE-2020-12826

CVE Details

Release Date:2020-05-12

Description


A signal access-control issue was discovered in the Linux kernel before 5.6.5, aka CID-7395ea4e65c2. Because exec_id in include/linux/sched.h is only 32 bits, an integer overflow can interfere with a do_notify_parent protection mechanism. A child process can send an arbitrary signal to a parent process in a different security domain. Exploitation limitations include the amount of elapsed time before an integer overflow occurs, and the lack of scenarios where signals to a parent process present a substantial operational threat.

See more information about CVE-2020-12826 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: 5.3 Base Metrics: AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Access Vector: Local network Attack Complexity: Low
Privileges Required: Low User Interaction: None
Scope: Unchanged Confidentiality Impact: Low
Integrity Impact: Low Availability Impact: Low

Errata information


PlatformErrataRelease Date
Oracle Linux version 7 (kernel)ELSA-2020-40602020-10-06
Oracle Linux version 8 (kernel)ELSA-2020-44312020-11-10



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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