Vulnerability-Lookup

RHSA-2013:1523

Vulnerability from csaf_redhat - Published: 2013-11-14 17:28 - Updated: 2026-06-28 12:22

Summary

Red Hat Security Advisory: ruby193-ruby security update

Severity

Moderate

Notes

Topic: Updated ruby193-ruby packages that fix one security issue are now available for Red Hat OpenStack 3.0. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

Details: Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to do system management tasks. RubyGems is the Ruby standard for publishing and managing third-party libraries. It was discovered that the rubygems API validated version strings using an unsafe regular expression. An application making use of this API to process a version string from an untrusted source could be vulnerable to a denial of service attack through CPU exhaustion. (CVE-2013-4287) Red Hat would like to thank Rubygems upstream for reporting this issue. Upstream acknowledges Damir Sharipov as the original reporter. Users of Red Hat OpenStack 3.0 are advised to upgrade to these updated packages, which correct this issue.

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2013-4287

A denial of service vulnerability exists in the RubyGems versions 2.0.7 or older, such that when RubyGems validates versioning it performs a wrong regular expression causing resource consumption due to algorithmic complexity.

2.6 ()


                
                  AV:N/AC:H/Au:N/C:N/I:N/A:P

CWE-1333 - Inefficient Regular Expression Complexity

Affected products

Fixed 18 products

Product	Version	Remediation
Unresolved product id: 6Server-Grizzly:ruby193-ruby-0:1.9.3.448-40.el6.src	—	Vendor Fix fix Workaround
Unresolved product id: 6Server-Grizzly:ruby193-ruby-0:1.9.3.448-40.el6.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: 6Server-Grizzly:ruby193-ruby-debuginfo-0:1.9.3.448-40.el6.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: 6Server-Grizzly:ruby193-ruby-devel-0:1.9.3.448-40.el6.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: 6Server-Grizzly:ruby193-ruby-doc-0:1.9.3.448-40.el6.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: 6Server-Grizzly:ruby193-ruby-irb-0:1.9.3.448-40.el6.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 6Server-Grizzly:ruby193-ruby-libs-0:1.9.3.448-40.el6.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: 6Server-Grizzly:ruby193-ruby-tcltk-0:1.9.3.448-40.el6.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: 6Server-Grizzly:ruby193-rubygem-bigdecimal-0:1.1.0-40.el6.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: 6Server-Grizzly:ruby193-rubygem-io-console-0:0.3-40.el6.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: 6Server-Grizzly:ruby193-rubygem-json-0:1.5.5-40.el6.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: 6Server-Grizzly:ruby193-rubygem-minitest-0:2.5.1-40.el6.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 6Server-Grizzly:ruby193-rubygem-rake-0:0.9.2.2-40.el6.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 6Server-Grizzly:ruby193-rubygems-0:1.8.23-40.el6.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 6Server-Grizzly:ruby193-rubygems-0:1.8.24-9.el6ost.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 6Server-Grizzly:ruby193-rubygems-0:1.8.24-9.el6ost.src	—	Vendor Fix fix Workaround
Unresolved product id: 6Server-Grizzly:ruby193-rubygems-devel-0:1.8.23-40.el6.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 6Server-Grizzly:ruby193-rubygems-devel-0:1.8.24-9.el6ost.noarch	—	Vendor Fix fix Workaround

Threats

Impact Moderate

References

9 references

URL	Category
https://access.redhat.com/errata/RHSA-2013:1523	self
https://access.redhat.com/security/updates/classi…	external
https://bugzilla.redhat.com/show_bug.cgi?id=1002364	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2013-4287	self
https://bugzilla.redhat.com/show_bug.cgi?id=1002364	external
https://www.cve.org/CVERecord?id=CVE-2013-4287	external
https://nvd.nist.gov/vuln/detail/CVE-2013-4287	external
http://blog.rubygems.org/2013/09/09/CVE-2013-4287.html	external

Acknowledgments

Rubygems upstream

Damir Sharipov

JSON

To clipboard

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CVE-2013-4287 (GCVE-0-2013-4287)

Vulnerability from cvelistv5 – Published: 2013-10-17 23:00 – Updated: 2024-08-06 16:38

Summary

Algorithmic complexity vulnerability in Gem::Version::VERSION_PATTERN in lib/rubygems/version.rb in RubyGems before 1.8.23.1, 1.8.24 through 1.8.25, 2.0.x before 2.0.8, and 2.1.x before 2.1.0, as used in Ruby 1.9.0 through 2.0.0p247, allows remote attackers to cause a denial of service (CPU consumption) via a crafted gem version that triggers a large amount of backtracking in a regular expression.

Severity

No CVSS data available.

CWE

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1042 records in the last 180 days details

References

9 references

URL	Tags
http://www.openwall.com/lists/oss-security/2013/09/10/1	mailing-listx_refsource_MLIST
http://secunia.com/advisories/55381	third-party-advisoryx_refsource_SECUNIA
http://rhn.redhat.com/errata/RHSA-2013-1523.html	vendor-advisoryx_refsource_REDHAT
http://blog.rubygems.org/2013/09/09/CVE-2013-4287.html	x_refsource_CONFIRM
https://puppet.com/security/cve/cve-2013-4287	x_refsource_CONFIRM
http://rhn.redhat.com/errata/RHSA-2013-1427.html	vendor-advisoryx_refsource_REDHAT
http://rhn.redhat.com/errata/RHSA-2013-1852.html	vendor-advisoryx_refsource_REDHAT
http://rhn.redhat.com/errata/RHSA-2013-1441.html	vendor-advisoryx_refsource_REDHAT
http://rhn.redhat.com/errata/RHSA-2014-0207.html	vendor-advisoryx_refsource_REDHAT

Date Public

2013-09-09 00:00

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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