FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

libxml2 -- multiple vulnerabilities

Affected packages
libxml2 < 2.6.32_2

Details

VuXML ID f1e0164e-b67b-11dd-a55e-00163e000016
Discovery 2008-11-18
Entry 2008-11-19

Secunia reports:

Two vulnerabilities have been reported in Libxml2, which can be exploited by malicious people to cause a DoS (Denial of Service) or to potentially compromise an application using the library.

1) An integer overflow error in the "xmlSAX2Characters()" function can be exploited to trigger a memory corruption via a specially

Successful exploitation may allow execution of arbitrary code, but requires e.g. that the user is tricked into processing an overly large XML file (2GB or more).

2) An integer overflow error in the "xmlBufferResize()" function can be exploited to trigger the execution of an infinite loop. The vulnerabilities are reported in version 2.7.2.

Other versions may also be affected.

References

CVE Name CVE-2008-4225
CVE Name CVE-2008-4226
URL http://secunia.com/Advisories/32773/
URL https://bugzilla.redhat.com/show_bug.cgi?id=470466
URL https://bugzilla.redhat.com/show_bug.cgi?id=470480