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.
References
Link | Resource |
---|---|
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F4TNVTT66VPRMX5UZYSDGSVRXKKDDDU5/ | |
https://security.netapp.com/advisory/ntap-20200625-0001/ | Third Party Advisory |
https://www.debian.org/security/2020/dsa-4721 | Third Party Advisory |
https://www.ruby-lang.org/en/news/2020/03/31/heap-exposure-in-socket-cve-2020-10933/ | Exploit Vendor Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2020-05-04T14:54:00
Updated: 2020-07-08T23:06:16
Reserved: 2020-03-24T00:00:00
Link: CVE-2020-10933
JSON object: View
NVD Information
Status : Modified
Published: 2020-05-04T15:15:13.963
Modified: 2023-11-07T03:14:25.740
Link: CVE-2020-10933
JSON object: View
Redhat Information
No data.
CWE