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Bug 1277146 - (CVE-2015-8035) CVE-2015-8035 libxml2: DoS when parsing specially crafted XML document if XZ support is enabled
CVE-2015-8035 libxml2: DoS when parsing specially crafted XML document if XZ ...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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: ---
Assigned To: Red Hat Product Security
impact=moderate,public=20151102,repor...
: Security
Depends On: 1595697 1277147 1277149 1277150 1322872
Blocks: 1274223 1277152 1318206
  Show dependency tree / graph
 
Reported: 2015-11-02 08:45 EST by Adam Mariš
Modified: 2018-06-27 07:56 EDT (History)
21 users (show)

See Also:
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.
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Clone Of:
Environment:
Last Closed:
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Regression: ---
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Documentation: ---
CRM:
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
Suggested patch for the issue (501 bytes, patch)
2015-11-02 11:46 EST, Daniel Veillard 		no flags Details | Diff
Add an attachment (proposed patch, testcase, etc.)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2016:1089 normal SHIPPED_LIVE Moderate: Red Hat JBoss Web Server 3.0.3 security update 2016-05-17 16:12:21 EDT

  None (edit)
Description Adam Mariš 2015-11-02 08:45:30 EST 
A vulnerability in libxml2 when parsing specially crafted XML document if XZ support is enabled causing DoS of application was found.

CVE request (including reproducer):

http://seclists.org/oss-sec/2015/q4/206
Comment 1 Adam Mariš 2015-11-02 08:46:11 EST 
Created libxml2 tracking bugs for this issue:

Affects: fedora-all [bug 1277147]
Comment 2 Adam Mariš 2015-11-02 08:46:19 EST 
Created mingw-libxml2 tracking bugs for this issue:

Affects: fedora-all [bug 1277149]
Affects: epel-7 [bug 1277150]
Comment 3 Martin Prpič 2015-11-02 09:16:34 EST 
Statement:

This issue did not affect the versions of libxml2 as shipped with Red Hat Enterprise Linux 5 and 6 as they did not include support for LZMA compression support.
Comment 4 Martin Prpič 2015-11-02 09:58:21 EST 
LZMA compression support was introduced in libxml2 in:

2.8.0: May 23 2012
Features: add lzma compression support (Anders F Bjorklund)
Comment 5 Daniel Veillard 2015-11-02 11:45:39 EST 
So lzma support in 2.9.2 seems to be broken that's why Fedora seems not affected.

But the bug is present since all version 2.8.0 onward.
Seems I managed to get a first fix for the issue, I will add as attachment

Daniel
Comment 6 Daniel Veillard 2015-11-02 11:46 EST 
Created attachment 1088640 [details]
Suggested patch for the issue
Comment 13 errata-xmlrpc 2016-05-17 12:14:02 EDT 
This issue has been addressed in the following products:



Via RHSA-2016:1089 https://rhn.redhat.com/errata/RHSA-2016-1089.html
Comment 14 Matthew Almond 2018-06-26 17:20:30 EDT 
Will this bug be addressed in RHEL7.x?
Comment 16 Adam Mariš 2018-06-27 07:56:22 EDT 
(In reply to Matthew Almond from comment #14)
> Will this bug be addressed in RHEL7.x?

Thanks for notifying us, this may be fixed in future release.
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