CVE-2017-0901

Severity: high (CVSS 7.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 29.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2017-08-31 · updated 2026-06-17
Weakness: CWE-22

Description

RubyGems version 2.6.12 and earlier fails to validate specification names, allowing a maliciously crafted gem to potentially overwrite any file on the filesystem.

Affected products

Canonical Ubuntu Linux: 14.04, 16.04, 17.10
Debian Linux: 8.0, 9.0
RedHat Enterprise Linux Desktop: 7.0
RedHat Enterprise Linux Server: 7.0
RedHat Enterprise Linux Server Aus: 7.4, 7.6
RedHat Enterprise Linux Server Eus: 7.4, 7.5, 7.6
RedHat Enterprise Linux Server Tus: 7.4, 7.6
RedHat Enterprise Linux Workstation: 7.0
rubygems: through 2.6.12

References

http://blog.rubygems.org/2017/08/27/2.6.13-released.html
http://www.securityfocus.com/bid/100580
http://www.securitytracker.com/id/1039249
https://access.redhat.com/errata/RHSA-2017:3485
https://access.redhat.com/errata/RHSA-2018:0378
https://access.redhat.com/errata/RHSA-2018:0583
https://access.redhat.com/errata/RHSA-2018:0585
https://github.com/rubygems/rubygems/commit/ad5c0a53a86ca5b218c7976765c0365b91d22cb2
https://hackerone.com/reports/243156
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
https://security.gentoo.org/glsa/201710-01
https://usn.ubuntu.com/3553-1/

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