CVE-2020-10933

CVE Details

Release Date:

2020-05-04

Description

An issue was discovered in Ruby 2.5.x through 2.5.7, 2.6.x through 2.6.5, and 2.7.0. If a victim calls BasicSocket#read_nonblock(requested_size, buffer, exception: false), the method resizes the buffer to fit the requested size, but no data is copied. Thus, the buffer string provides the previous value of the heap. This may expose possibly sensitive data from the interpreter.

See more information about CVE-2020-10933 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:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Access Vector:	Network	Attack Complexity:	Low
Privileges Required:	None	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	Low
Integrity Impact:	None	Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 8 (ruby)	ELSA-2021-2587	2021-07-02
Oracle Linux version 8 (ruby)	ELSA-2021-2588	2021-07-07
Oracle Linux version 8 (rubygem-abrt)	ELSA-2021-2587	2021-07-02
Oracle Linux version 8 (rubygem-abrt)	ELSA-2021-2588	2021-07-07
Oracle Linux version 8 (rubygem-bson)	ELSA-2021-2587	2021-07-02
Oracle Linux version 8 (rubygem-bson)	ELSA-2021-2588	2021-07-07
Oracle Linux version 8 (rubygem-bundler)	ELSA-2021-2587	2021-07-02
Oracle Linux version 8 (rubygem-mongo)	ELSA-2021-2587	2021-07-02
Oracle Linux version 8 (rubygem-mongo)	ELSA-2021-2588	2021-07-07
Oracle Linux version 8 (rubygem-mysql2)	ELSA-2021-2587	2021-07-02
Oracle Linux version 8 (rubygem-mysql2)	ELSA-2021-2588	2021-07-07
Oracle Linux version 8 (rubygem-pg)	ELSA-2021-2587	2021-07-02
Oracle Linux version 8 (rubygem-pg)	ELSA-2021-2588	2021-07-07

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