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PostPosted: Fri Nov 10, 2017 3:26 am    Post subject: [ GLSA 201711-01 ] libxml2 Reply with quote

Gentoo Linux Security Advisory

Title: libxml2: Multiple vulnerabilities (GLSA 201711-01)
Severity: normal
Exploitable: remote
Date: 2017-11-10
Bug(s): #599192, #605208, #618604, #622914, #623206
ID: 201711-01

Synopsis

Multiple vulnerabilities have been found in libxml2, the worst of
which could result in the execution of arbitrary code.


Background

libxml2 is the XML (eXtended Markup Language) C parser and toolkit
initially developed for the Gnome project.


Affected Packages

Package: dev-libs/libxml2
Vulnerable: < 2.9.4-r3
Unaffected: >= 2.9.4-r3
Architectures: All supported architectures


Description

Multiple vulnerabilities have been discovered in libxml2. Please review
the CVE identifiers referenced below for details.


Impact

A remote attacker, by enticing a user to process a specially crafted XML
document, could remotely execute arbitrary code, conduct XML External
Entity (XXE) attacks, or cause a Denial of Service condition.


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/libxml2-2.9.4-r3"
   
Packages which depend on this library may need to be recompiled. Tools
such as revdep-rebuild may assist in identifying some of these packages.


References


CVE-2016-9318


CVE-2017-0663


CVE-2017-5969


CVE-2017-7375


CVE-2017-9047


CVE-2017-9048


CVE-2017-9049


CVE-2017-9050
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