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CRITICAL

libxml2: Mishandling parameter-entity references

Published Nov 23, 2017

Description

parser.c in libxml2 before 2.9.5 mishandles parameter-entity references because the NEXTL macro calls the xmlParserHandlePEReference function in the case of a '%' character in a DTD name.

Affected products

Remediation

Red Hat statement

This issue affects the versions of rubygem-nokogiri as shipped with Red Hat Subscription Asset Manager 1.x. Red Hat Product Security has rated this issue as having Moderate security impact. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/. This issue affects the versions of libxml2 as shipped with Red Hat Enterprise Linux 5, 6, and 7. Red Hat Product Security has rated this issue as having Moderate security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/. This issue affects the versions of rubygem-nokogiri on CloudForms 5 as it uses the Red Hat Enterprise copy of libxml2 as shipped with Red Hat Enterprise Linux 7. Red Hat Product Security has rated this issue as having Moderate security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/. This issue affects the versions of rubygem-nokogiri on Satellite 6.0, 6.1 and 6.2 as it uses the Red Hat Enterprise copy of libxml2 as shipped with Red Hat Enterprise Linux 7. Red Hat Product Security has rated this issue as having Moderate security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/. Please note that Satellite version 6.3 no longer ships rubygem-nokogir, but instead uses a version of rubygem-nokogiri from another software channel. Red Hat Enterprise Linux 5 is now in Extended Life Cycle phase of the support and maintenance life cycle. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/. Red Hat Enterprise Linux 6 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.

Metrics

References (9)

Change history (0)

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Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Nov 23, 2017
Updated Aug 5, 2024
Reserved Nov 23, 2017
NVD
Status Modified
Modified Jun 17, 2026
Red Hat
Severity Moderate
Public date Jun 5, 2017