CVE-2018-1000074

MEDIUM

Description

RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a Deserialization of Untrusted Data vulnerability in owner command that can result in code execution. This attack appear to be exploitable via victim must run the `gem owner` command on a gem with a specially crafted YAML file. This vulnerability appears to have been fixed in 2.7.6.

References

http://blog.rubygems.org/2018/02/15/2.7.6-released.html

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://github.com/rubygems/rubygems/commit/254e3d0ee873c008c0b74e8b8abcbdab4caa0a6d

https://lists.debian.org/debian-lts-announce/2018/04/msg00017.html

https://lists.debian.org/debian-lts-announce/2018/08/msg00028.html

https://lists.debian.org/debian-lts-announce/2019/05/msg00028.html

https://usn.ubuntu.com/3621-1/

https://usn.ubuntu.com/3621-2/

https://usn.ubuntu.com/3685-1/

https://www.debian.org/security/2018/dsa-4219

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

Details

Source: MITRE

Published: 2018-03-13

Updated: 2019-05-20

Type: CWE-502

Risk Information

CVSS v2.0

Base Score: 6.8

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

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3.0

Base Score: 7.8

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

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH