CVE-2018-8779

high

Description

In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, the UNIXServer.open and UNIXSocket.open methods are not checked for null characters. It may be connected to an unintended socket.

References

http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html

http://www.securityfocus.com/bid/103767

http://www.securitytracker.com/id/1042004

https://access.redhat.com/errata/RHSA-2018:3729

https://access.redhat.com/errata/RHSA-2018:3730

https://access.redhat.com/errata/RHSA-2018:3731

https://access.redhat.com/errata/RHSA-2019:2028

https://lists.debian.org/debian-lts-announce/2018/04/msg00023.html

https://lists.debian.org/debian-lts-announce/2018/04/msg00024.html

https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html

https://usn.ubuntu.com/3626-1/

https://www.debian.org/security/2018/dsa-4259

https://www.ruby-lang.org/en/news/2018/03/28/poisoned-nul-byte-unixsocket-cve-2018-8779/

https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-2-10-released/

https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-3-7-released/

https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-4-4-released/

https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-5-1-released/

Details

Source: MITRE

Published: 2018-04-03

Updated: 2019-07-21

Type: CWE-20

Risk Information

CVSS v2

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH