Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
[ GLSA 200812-06 ] libxml2: Multiple vulnerabilities
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index News & Announcements
View previous topic :: View next topic  
Author Message
GLSA
Veteran
Veteran


Joined: 12 May 2004
Posts: 1567

PostPosted: Tue Dec 02, 2008 11:26 pm    Post subject: [ GLSA 200812-06 ] libxml2: Multiple vulnerabilities Reply with quote

Gentoo Linux Security Advisory

Title: libxml2: Multiple vulnerabilities (GLSA 200812-06)
Severity: normal
Exploitable: remote
Date: December 02, 2008
Bug(s): #234099, #237806, #239346, #245960
ID: 200812-06

Synopsis

Multiple vulnerabilities in libxml2 might lead to execution of arbitrary code or Denial of Service.

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: < 2.7.2-r1
Unaffected: >= 2.7.2-r1
Architectures: All supported architectures


Description

Multiple vulnerabilities were reported in libxml2:
  • Andreas Solberg reported that libxml2 does not properly detect recursion during entity expansion in an attribute value (CVE-2008-3281).
  • A heap-based buffer overflow has been reported in the xmlParseAttValueComplex() function in parser.c (CVE-2008-3529).
  • Christian Weiske reported that predefined entity definitions in entities are not properly handled (CVE-2008-4409).
  • Drew Yao of Apple Product Security reported an integer overflow in the xmlBufferResize() function that can lead to an infinite loop (CVE-2008-4225).
  • Drew Yao of Apple Product Security reported an integer overflow in the xmlSAX2Characters() function leading to a memory corruption (CVE-2008-4226).


Impact

A remote attacker could entice a user or automated system to open a specially crafted XML document with an application using libxml2, possibly resulting in the exeution of arbitrary code or a high CPU and memory consumption.

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/libxml2-2.7.2-r1"


References

CVE-2008-3281
CVE-2008-3529
CVE-2008-4409
CVE-2008-4225
CVE-2008-4226
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index News & Announcements All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum