#VU31886 Information disclosure in Ruby - CVE-2020-10933
Published: July 26, 2020
Vulnerability identifier: #VU31886
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-10933
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Ruby
Ruby
Software vendor:
Ruby
Ruby
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to BasicSocket#read_nonblock method outputs previous value of the heap instead of copying the requested data. A remote attacker can gain access to sensitive information on the system.
Remediation
Install updates from vendor's website.
External links
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/F4TNVTT66VPRMX5UZYSDGSVRXKKDDDU5/
- https://security.netapp.com/advisory/ntap-20200625-0001/
- https://www.debian.org/security/2020/dsa-4721
- https://www.ruby-lang.org/en/news/2020/03/31/heap-exposure-in-socket-cve-2020-10933/