Alerts This Week
Warning Icon 1 1,149
Alerts This Week
Warning Icon 1 1,149

Red Hat: RHSA-2020-0542 moderate: ruby DoS and Path Traversal Issues

red hat
Calendar Grey February 18, 2020
Dist Redhat Esm H88
CentOS has released a noteworthy security patch for Python impacting RHEL 8.3, which addresses a series of vulnerability corrections.
An update for ruby is now available for Red Hat Enterprise Linux 7.5 Extended Update Support

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks.
Security Fix(es):
* ruby: DoS by large request in WEBrick (CVE-2018-8777)
* ruby: Unintentional directory traversal by poisoned NULL byte in Dir (CVE-2018-8780)
* rubygems: Path traversal when writing to a symlinked basedir outside of the root (CVE-2018-1000073)
* rubygems: Unsafe Object Deserialization Vulnerability in gem owner allowing arbitrary code execution on specially crafted YAML (CVE-2018-1000074)
* rubygems: Improper verification of signatures in tarball allows to install mis-signed gem (CVE-2018-1000076)
* rubygems: Missing URL validation on spec home attribute allows malicious gem to set an invalid homepage URL (CVE-2018-1000077)
* rubygems: XSS vulnerability in homepage attribute when displayed via gem server (CVE-2018-1000078)
* rubygems: Path traversal issue during gem installation allows to write to arbitrary filesystem locations (CVE-2018-1000079)
* rubygems: Infinite loop vulnerability due to negative size in tar header causes Denial of Service (CVE-2018-1000075)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat directory traversal DoS ruby path traversal

References

https://access.redhat.com/security/cve/CVE-2018-8777 https://access.redhat.com/security/cve/CVE-2018-8780 https://access.redhat.com/security/cve/CVE-2018-1000073 https://access.redhat.com/security/cve/CVE-2018-1000074 https://access.redhat.com/security/cve/CVE-2018-1000075 https://access.redhat.com/security/cve/CVE-2018-1000076 https://access.redhat.com/security/cve/CVE-2018-1000077 https://access.redhat.com/security/cve/CVE-2018-1000078 https://access.redhat.com/security/cve/CVE-2018-1000079 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux ComputeNode EUS (v. 7.5):
Source: ruby-2.0.0.648-35.el7_5.src.rpm
noarch: ruby-irb-2.0.0.648-35.el7_5.noarch.rpm rubygem-rdoc-4.0.0-35.el7_5.noarch.rpm rubygems-2.0.14.1-35.el7_5.noarch.rpm
x86_64: ruby-2.0.0.648-35.el7_5.x86_64.rpm ruby-debuginfo-2.0.0.648-35.el7_5.i686.rpm ruby-debuginfo-2.0.0.648-35.el7_5.x86_64.rpm ruby-libs-2.0.0.648-35.el7_5.i686.rpm ruby-libs-2.0.0.648-35.el7_5.x86_64.rpm rubygem-bigdecimal-1.2.0-35.el7_5.x86_64.rpm rubygem-io-console-0.4.2-35.el7_5.x86_64.rpm rubygem-json-1.7.7-35.el7_5.x86_64.rpm rubygem-psych-2.0.0-35.el7_5.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5):
noarch: ruby-doc-2.0.0.648-35.el7_5.noarch.rpm rubygem-minitest-4.3.2-35.el7_5.noarch.rpm rubygem-rake-0.9.6-35.el7_5.noarch.rpm rubygems-devel-2.0.14.1-35.el7_5.noarch.rpm
x86_64: ruby-debuginfo-2.0.0.648-35.el7_5.x86_64.rpm ruby-devel-2.0.0.648-35.el7_5.x86_64.rpm ruby-tcltk-2.0.0.648-35.el7_5.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 7.5):
Source: ruby-2.0.0.648-35.el7_5.src.rpm
noarch: ruby-irb-2.0.0.648-35.el7_5.noarch.rpm rubygem-rdoc-4.0.0-35.el7_5.noarch.rpm rubygems-2.0.14.1-35.el7_5.noarch.rpm
ppc64: ruby-2.0.0.648-35.el7_5.ppc64.rpm ruby-debuginfo-2.0.0.648-35.el7_5.ppc.rpm

Read the Full Advisory


Advisory ID: RHSA-2020:0542-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:0542
Issue date: 2020-02-18

Topic

An update for ruby is now available for Red Hat Enterprise Linux 7.5Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat directory traversal DoS ruby path traversal

Relevant Releases Architectures

Red Hat Enterprise Linux ComputeNode EUS (v. 7.5) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5) - noarch, x86_64

Red Hat Enterprise Linux Server EUS (v. 7.5) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional EUS (v. 7.5) - noarch, ppc64, ppc64le, s390x, x86_64

Bugs Fixed

1547418 - CVE-2018-1000073 rubygems: Path traversal when writing to a symlinked basedir outside of the root

1547419 - CVE-2018-1000074 rubygems: Unsafe Object Deserialization Vulnerability in gem owner allowing arbitrary code execution on specially crafted YAML

1547420 - CVE-2018-1000075 rubygems: Infinite loop vulnerability due to negative size in tar header causes Denial of Service

1547421 - CVE-2018-1000076 rubygems: Improper verification of signatures in tarball allows to install mis-signed gem

1547422 - CVE-2018-1000077 rubygems: Missing URL validation on spec home attribute allows malicious gem to set an invalid homepage URL

1547425 - CVE-2018-1000078 rubygems: XSS vulnerability in homepage attribute when displayed via gem server

1547426 - CVE-2018-1000079 rubygems: Path traversal issue during gem installation allows to write to arbitrary filesystem locations

1561949 - CVE-2018-8780 ruby: Unintentional directory traversal by poisoned NULL byte in Dir

1561950 - CVE-2018-8777 ruby: DoS by large request in WEBrick

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here