CVE-2018-1000076 — Improper Verification of Cryptographic Signature in Rubygems
Severity
9.8CRITICALNVD
OSV7.5
EPSS
0.9%
top 23.89%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMar 13
Latest updateMay 14
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:HExploitability: 3.9 | Impact: 5.9
Affected Packages5 packages
Also affects: Debian Linux 7.0
Patches
🔴Vulnerability Details
6📋Vendor Advisories
4💬Community
2Bugzilla▶
CVE-2018-1000073 CVE-2018-1000074 CVE-2018-1000075 CVE-2018-1000076 CVE-2018-1000077 CVE-2018-1000078 CVE-2018-1000079 rubygems: various flaws [fedora-all]↗2018-02-21
Bugzilla▶
CVE-2018-1000076 rubygems: Improper verification of signatures in tarball allows to install mis-signed gem↗2018-02-21