libxml2: Multiple vulnerabilities
Multiple vulnerabilities in libxml2 might lead to execution of arbitrary
code or Denial of Service.
libxml2
2008-12-02
2008-12-02: 01
234099
237806
239346
245960
remote
2.7.2-r1
2.7.2-r1
libxml2 is the XML (eXtended Markup Language) C parser and toolkit
initially developed for the Gnome project.
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).
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.
There is no known workaround at this time.
All libxml2 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/libxml2-2.7.2-r1"
CVE-2008-3281
CVE-2008-3529
CVE-2008-4409
CVE-2008-4225
CVE-2008-4226
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