CVE-2018-1000076 Information

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 Improper Verification of Cryptographic Signature vulnerability in package.rb that can result in a mis-signed gem could be installed as the tarball would contain multiple gem signatures.. This vulnerability appears to have been fixed in 2.7.6.

CVSS Vector

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

Reference

http://blog.rubygems.org/2018/02/15/2.7.6-released.html http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.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://access.redhat.com/errata/RHSA-2019:2028 https://access.redhat.com/errata/RHSA-2020:0542 https://access.redhat.com/errata/RHSA-2020:0591 https://access.redhat.com/errata/RHSA-2020:0663 https://github.com/rubygems/rubygems/commit/f5042b879259b1f1ce95a0c5082622c646376693 https://lists.debian.org/debian-lts-announce/2018/04/msg00000.html https://lists.debian.org/debian-lts-announce/2018/04/msg00001.html https://lists.debian.org/debian-lts-announce/2018/04/msg00023.html https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html https://lists.debian.org/debian-lts-announce/2019/05/msg00028.html https://usn.ubuntu.com/3621-1/ https://www.debian.org/security/2018/dsa-4219 https://www.debian.org/security/2018/dsa-4259

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8