Bug 1276693 (CVE-2015-5312)

Summary: CVE-2015-5312 libxml2: CPU exhaustion when processing specially crafted XML input
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: carnil, csutherl, dknox, jclere, jdoyle, lgao, mbabacek, mcermak, mturk, myarboro, ohudlick, sardella, security-response-team, slawomir, twalsh, veillard, weli
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
See Also: https://issues.redhat.com/browse/JBCS-213
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 use an excessive amount of CPU.
 Story Points: ---
Clone Of: Environment:
Last Closed: 2019-06-08 02:45:00 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, 1322871    
Bug Blocks: 1274223, 1276694, 1318206    
Attachments:
Description Flags
Proposed patch none

Description Adam Mariš 2015-10-30 14:00:52 UTC 
A vulnerability in libxml2 was found causing DoS by exhausting CPU when parsing specially crafted XML document.

Upstream bug:

https://bugzilla.gnome.org/show_bug.cgi?id=756733
Comment 2 Adam Mariš 2015-10-30 16:59:39 UTC 
Created attachment 1087984 [details]
Proposed patch

Patch proposed by Google Security Team.
Comment 6 Huzaifa S. Sidhpurwala 2015-12-01 09:50:37 UTC 
Upstream commit:

https://git.gnome.org/browse/libxml2/commit/?id=69030714cde66d525a8884bda01b9e8f0abf8e1e
Comment 8 errata-xmlrpc 2015-12-07 10:14:24 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 9 errata-xmlrpc 2015-12-07 12:00:27 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 13 errata-xmlrpc 2016-05-17 16:13:53 UTC 
This issue has been addressed in the following products:



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