MEDIUM

GHSA-95vx-q4c2-64gr

RubyGems file overwrite vulnerability

Quick fix

GHSA-95vx-q4c2-64gr — rubygems-update: upgrade to the fixed version with the command below.

bundle update rubygems-update

Details

The `extract_files` function in `installer.rb` in RubyGems before 0.9.1 does not check whether files exist before overwriting them, which allows user-assisted remote attackers to overwrite arbitrary files, cause a denial of service, or execute arbitrary code via crafted GEM packages.

Are you affected?

Enter the version of the package you're using.

Affected packages

RubyGems/rubygems-update

Introduced in: 0Fixed in: 0.9.1

Fixbundle update rubygems-update

References

https://nvd.nist.gov/vuln/detail/CVE-2007-0469[ADVISORY]
https://exchange.xforce.ibmcloud.com/vulnerabilities/31688[WEB]
https://github.com/rubygems/rubygems[PACKAGE]
https://web.archive.org/web/20070210090150/http://rubyforge.org/frs/shownotes.php?group_id=126&release_id=9074[WEB]
https://web.archive.org/web/20201207172116/http://www.securityfocus.com/archive/1/458128/100/0/threaded[WEB]
http://marc.info/?l=full-disclosure&m=116939816621060&w=2[WEB]
http://www.novell.com/linux/security/advisories/2007_4_sr.html[WEB]