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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200612-05] KOffice shared libraries: Heap corruption


Vulnerability Assessment Details

[GLSA-200612-05] KOffice shared libraries: Heap corruption

Vulnerability Assessment Summary
KOffice shared libraries: Heap corruption

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200612-05
(KOffice shared libraries: Heap corruption)


Kees Cook of Ubuntu discovered that 'KLaola::readBigBlockDepot()' in
klaola.cc fills 'num_of_bbd_blocks' while reading a .ppt (PowerPoint)
file without proper sanitizing, resulting in an integer overflow
subsequently overwriting the heap with parts of the file being read.

Impact

By enticing a user to open a specially crafted PowerPoint file, an
attacker could crash the application and possibly execute arbitrary
code with the rights of the user running KOffice.

Workaround

There is no known workaround at this time.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6120


Solution:
All koffice-libs users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-office/koffice-libs-1.5.0"


Network Security Threat Level: Medium


Networks Security ID:

Vulnerability Assessment Copyright: (C) 2006 Michel Arboi

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