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Update packaged zlib from 1.2.11 to 1.2.12

High
flavorjones published GHSA-v6gp-9mmm-c6p5 Apr 11, 2022

Package

bundler nokogiri (RubyGems)

Affected versions

< 1.13.4

Patched versions

1.13.4

Description

Summary

Nokogiri v1.13.4 updates the vendored zlib from 1.2.11 to 1.2.12, which addresses CVE-2018-25032. That CVE is scored as CVSS 7.4 "High" on the NVD record as of 2022-04-05.

Please note that this advisory only applies to the CRuby implementation of Nokogiri < 1.13.4, and only if the packaged version of zlib is being used. Please see this document for a complete description of which platform gems vendor zlib. If you've overridden defaults at installation time to use system libraries instead of packaged libraries, you should instead pay attention to your distro's zlib release announcements.

Mitigation

Upgrade to Nokogiri >= v1.13.4.

Impact

CVE-2018-25032 in zlib

  • Severity: High
  • Type: CWE-787 Out of bounds write
  • Description: zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if the input has many distant matches.

Severity

High

CVE ID

No known CVE

Weaknesses