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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2020-05-04T14:54:00

Updated: 2024-08-04T11:21:13.597Z

Reserved: 2020-03-24T00:00:00

Link: CVE-2020-10933

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-05-04T15:15:13.963

Modified: 2024-11-21T04:56:23.987

Link: CVE-2020-10933

cve-icon Redhat

Severity : Moderate

Publid Date: 2020-03-31T00:00:00Z

Links: CVE-2020-10933 - Bugzilla