Bug 1281879 (CVE-2015-7498)

Summary: CVE-2015-7498 libxml2: Heap-based buffer overflow in xmlParseXmlDecl
Product: [Other] Security Response Reporter: Adam Mariš <amaris>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: csutherl, dknox, jclere, jdoyle, jrusnack, lgao, mbabacek, mcermak, mturk, myarboro, ohudlick, sardella, security-response-team, slawomir, twalsh, veillard, weli
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
A denial of service flaw was found in libxml2. A remote attacker could provide a specially crafted XML or HTML file that, when processed by an application using libxml2, would cause that application to crash.
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-06-08 02:45:16 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1284794, 1286495, 1286496, 1286497, 1322880    
Bug Blocks: 1274223, 1281960, 1318206    

Description Adam Mariš 2015-11-13 17:04:21 UTC
Heap-based buffer overflow was found in xmlParseXmlDecl. When conversion failure happens, parser continues to extract more errors which may lead to unexpected behaviour.

Upstream bug:

https://bugzilla.gnome.org/show_bug.cgi?id=756527

Upstream patch:

https://git.gnome.org/browse/libxml2/commit/?id=afd27c21f6b36e22682b7da20d726bce2dcb2f43

Comment 2 Adam Mariš 2015-11-16 14:04:23 UTC
Acknowledgments:

Name: the GNOME project
Upstream: Kostya Serebryany

Comment 6 Huzaifa S. Sidhpurwala 2015-12-01 09:55:31 UTC
Upstream commit:

https://git.gnome.org/browse/libxml2/commit/?id=afd27c21f6b36e22682b7da20d726bce2dcb2f43

Comment 7 errata-xmlrpc 2015-12-07 10:14:36 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2015:2549 https://rhn.redhat.com/errata/RHSA-2015-2549.html

Comment 8 errata-xmlrpc 2015-12-07 12:00:38 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2015:2550 https://rhn.redhat.com/errata/RHSA-2015-2550.html

Comment 12 errata-xmlrpc 2016-05-17 16:14:20 UTC
This issue has been addressed in the following products:



Via RHSA-2016:1089 https://rhn.redhat.com/errata/RHSA-2016-1089.html