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[ GLSA 201409-08 ] libxml2: Denial of Service
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PostPosted: Fri Sep 19, 2014 10:26 pm    Post subject: [ GLSA 201409-08 ] libxml2: Denial of Service Reply with quote

Gentoo Linux Security Advisory

Title: libxml2: Denial of Service (GLSA 201409-08)
Severity: normal
Exploitable: remote
Date: September 19, 2014
Bug(s): #509834
ID: 201409-08

Synopsis

A vulnerability in libxml2 allows a remote attacker to cause Denial
of Service.


Background

libxml2 is the XML C parser and toolkit developed for the Gnome project.

Affected Packages

Package: dev-libs/libxml2
Vulnerable: < 2.9.1-r4
Unaffected: >= 2.9.1-r4
Architectures: All supported architectures


Description

A vulnerability in the xmlParserHandlePEReference() function of
parser.c, when expanding entity references, can be exploited to consume
large amounts of memory and cause a crash or hang.


Impact

A remote attacker may be able to cause Denial of Service via a specially
crafted XML file containing malicious attributes.


Workaround

There is no known workaround at this time.

Resolution

All libxml2 users should upgrade to the latest version:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-libs/libxml2-2.9.1-r4"
   


References

CVE-2014-0191
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