Improper input validation in RubyGems - CVE-2017-14033

Vulnerability identifier: #VU8449

CSH Severity: Low

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2017-14033

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to buffer underrun. A remote attacker can provide a specially crafted string to the OpenSSL::ASN1 decode function to cause the target interpreter to crash.

Successful exploitation of the vulnerability results in denial of service.

RubyGems
Amazon Linux AMI
Debian Linux
Gentoo Linux
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux for Power
macOS
Slackware Linux
Ubuntu
Fedora
ruby (Alpine package)
prayer (Alpine package)
rh-ruby22-ruby (Red Hat package)
rh-ruby23-ruby (Red Hat package)
ruby
EMC Integrated Data Protection Appliance
Dell EMC Data Protection Search

Update to version 2.2.8 or 2.3.5.

EMC Integrated Data Protection Appliance - update to 2.7.1
ruby (Alpine package) - addressed in versions 2.2.8-r0, 2.7.2-r0
Dell EMC Data Protection Search - update to 19.6.0
rh-ruby22-ruby (Red Hat package) - addressed in versions 2.2.9-19.el6, 2.2.9-19.el7
rh-ruby23-ruby (Red Hat package) - addressed in versions 2.3.6-67.el6, 2.3.6-67.el7
ruby - addressed in versions 2.4.2-84.fc26, 2.4.2-84.fc27

• https://www.ruby-lang.org/en/news/2017/09/14/openssl-asn1-buffer-underrun-cve-2017-14033/

• Multiple vulnerabilities in Ruby RubyGems
• Ubuntu update for Ruby
• Slackware Linux update for ruby
• Amazon Linux AMI update for ruby24
• Amazon Linux AMI update for ruby22, ruby23
• Debian update for ruby2.3
• Ubuntu update for Ruby
• Multiple vulnerabilities in Apple MacOS
• Red Hat update for ruby
• Improper input validation in ruby (Alpine package)
• Improper input validation in prayer (Alpine package)
• Gentoo update for Ruby
• Multiple vulnerabilities in Dell EMC Integrated Data Protection Appliance
• Multiple vulnerabilities in Dell EMC Data Protection Search
• Red Hat Software Collections update for rh-ruby22-ruby
• Red Hat Software Collections update for rh-ruby23-ruby
• Fedora 27 update for ruby
• Fedora 26 update for ruby